2. Quaternion Spin
Spin is defined as a point particle of intrinsic angular momentum of magnitude
, with two polarized states of
where
is a unit vector on the Bloch sphere. It is even to parity, has SU(2) symmetry and is one of the two solutions to the Dirac equation. Call this Dirac spin, [
12].
A polarizing field is required to lift the degeneracy in order to form these states,
, which are used, for example, to form qubits. In contrast, in the absence of a polarizer, the two states cannot form and they are degenerate. Qubits then don’t exist. We call a spin in the absence of a polarizing field, a free-flight spin. As shown elsewhere, [
5,
6,
7], its properties are crucial to resolving the EPR paradox, and several other problems within the foundations of physics. Generally, we change the symmetry from SU(2) to the quaternion group
, and the spin that emerges carries the property of coherence in addition to polarization. We call this quaternion, or Q-spin.
The well known expression for the geometric product of two Pauli spin components is, [
13],
The first term is symmetric and leads to the polarized states,
, and the second is anti-symmetric, in terms of the Levi-Civita tensor and a bivector,
, which leads to the helicity. The two terms in Eq.(
1) are complementary, by which we mean they are mutually exclusive.
There is no bivector in the Dirac Equation, and introducing one is the only change made from the usual approach. To do this, one gamma matrix is multiplied by the imaginary number,
i,
. This renders the Dirac equation non-Hermitian, and complexifies spin spacetime (subscript
s), [
5].
we us The gamma matrices represent the Dirac field in Minkowski space, which is a four dimensional real manifold where we live and observe. It is our Lab Fixed Frame, LFF, with dimensions of time and three spacial components, . The signature, or Clifford algebra is . Each Q-spin has its own Body Fixed Frame, BFF, called spin spacetime denoted by, . It is a boost and rotation away from Minkowski space.
Spin spacetime is governed by the non-Hermitian Dirac equation, which, due to the bivector, has algebra of . The gamma matrices, are changed in spin spacetime. Notice there are two gamma fields , due to the non-Hermiticity. These are related by complex conjugation.
The bivector complexifies the Dirac field and extends spin beyond our real LFF space. The underlying motivation behind Twistor Theory, [
14,
15], is Nature is fundamentally complex and we live in the real part. The results obtained here support this idea. Indeed the bivector leads directly to the definition of helicity as the complementary attribute of spin. The definition of spin is changed from a Hermitian Pauli spin vector, to a non-Hermitian complex spin operator which is an element of reality:
The geometric helicity is defined by,
Consider an EPR pair, two spins initially in a singlet state and separate into a product state devoid of entanglement. The correlation, [
6], from an entangled state is
with
. Dropping the entanglement to give a product state, loses correlation giving the contribution from polarization, (pol),
. The conclusion follows from Bell’s Theorem that the missing correlation is a result of entanglement that must persists over spacetime. That is non-locality is a property of Nature. However, a similar calculation, [
6], gives the contribution from coherence, (coh),
. This shows that helicity accounts for the correlation that leads to the violation of BI,
which is conserved, [
6], upon the separation of an EPR pair into a product state. Non-locality is not needed.
EPR coincidence experiments, [
8,
9,
10], measure correlation from both polarization and coherence. The former is between the two fermion spins of Alice and Bob. The latter is between two boson spins of Alice and Bob. These statements are now explained.
Upon complexifying the Dirac field, the Dirac equation is non-Hermitian, and the two solutions, complex conjugates of each other, are mirror states, [
16] and have no parity,
. They are reflective twins, and Dirac interpreted them as a matter-antimatter pair, [
17], two spins with two states each.
A further observation is that under parity, the non-Hermitian Dirac equation separates once again into two complementary spaces governed by two distinct equations, see Eqs.(10), (11) of reference [
5]. Equation (
10) is an even parity 2D Dirac equation which describes a plane formed from the (31) axes. The odd parity Equation (
11) is that for a massless Weyl spinor and solves to give a unit quaternion that spins the axis,
Y,
Figure 1. These two states of opposite parity are formed from the mirror states,
, where
.
Q-spin is one particle in the complex Dirac field with four states: two polarized states of up and down, , and two helicity states of L and R. The two mirror states, , describe the two orthogonal spin axes on the same particle, and both these are also orthogonal to the axis of linear momentum. Polarization spacetime now has algebra .
The states that are complementary to the polarization are in coherent space (not spacetime) which is beyond our LFF. It cannot be directly observed. It is the hypersphere of quaternions. Under parity, the equation for a massless Weyl spinor solves to give a unit quaternion which spins the axis of linear momentum, .
The two point-particle Dirac spins becomes one particle with two orthogonal axes,
and
, shown in
Figure 1. Each is a fermion of spin-
, and each carries a magnetic momentum of
. Therefore, Q-spin is defined only in the disc in the BFF,
and the two components couple to form a composite boson which bisects the
quadrant. In free-flight, an electron is a boson spin-1,
, odd to parity, and spinning with two helicity states of L or R. The magnetic moment of the boson is twice that of each fermion axis, being
.
In the presence of a polarizing field,
, spin is a unit quaternion,
, and the two spin axes are no longer indistinguishable. Two general situations arise: if the field lies close to the boson axis, it precesses as a vector with Larmor frequency of
. If the field lies close to one of the two fermion spin axes each with Larmor frequency of
, then the boson decouples and one of the spin axes aligns with the external field. These ideas are visualized in
Figure 2, L and R panels. If one aligned axis carries state,
, then the other carries the state,
.
Whether the boson spin remains intact or decouples, depends upon the orientation of the spin in the field, and upon the field strength, relative to the spin-spin coupling within the boson. The EPR paradox is resolved by including the correlation from both polarization and helicity, and the transition between the two. To determine which axis aligns, we use the Least Action Principle that states the axis with the greatest attraction to the field will align.
Q-spin embodies wave-particle duality showing the properties of spin depend upon its environment. The polarization (particle),
, and the coherence (wave),
are manifest as complementary attributes such that the polarization exists only in an anisotropic environment as a fermion, whereas the coherence exists only in an isotropic environment as a boson,
Q-spin gives a boson electron of odd parity in free-flight and a fermion electron of even parity when measured. This is the wave-particle duality.
When we complexified the Dirac field, we did not expect a 2D spinning disc, a World sheet, [
18], nor spin being an anyon, [
19]. We did not expect that antimatter production by Dirac’s interpretation would be unnecessary.
2.1. Identifying EPR Coherence
In reference [
7] it is shown the violation of BI is due to the transition from a boson in free-flight to a fermion when measured. A simulation confirms this and generates the EPR correlation in
Figure 3 which plots the correlation between EPR pairs versus their filter angle difference,
. The correlation from the usual singlet state,
is plotted in
Figure 3 which has a CHSH, [
8], of
. If the entanglement is dropped, then so is the coherence. This leaves only a product state displayed as the triangle, with CHSH = 2 which does not violate BI. The difference between the two is the part that violates BI, called the mustache function, with CHSH = 0.828.
The simulation results are also shown on the same figure along with their CHSH values. The simulation algorithm, [
7] for the vector polarization has one spinning axis,
or 3, and the bivector has two counter spinning axes,
, but only one aligns. Concisely, when both Alice and Bob are fermions, the correlation contributes to the triangle. When both are bosons, the correlation contributes to the mustache. When one of Alice or Bob is a boson and the other a fermion, then only polarized correlation is possible, [
5].
Consider a correlation experiment with Alice and Bob’s filters set to differ by . Both spins are anti-correlated as they approach their filters, the two space-like separated. Again, Least Action deterministically predicts the outcomes for both. Since the magnetic moment of the boson is twice that of the fermion, the boson attraction is double that of the fermions. We conclude that the boson persists uncoupled over a larger range than do the fermions, and precesses intact until the field is close to either the or axes. In the process, the boson begins to nutate until finally it decouples.
Figure 4 illustrates the four experiments used in the CHSH experiment, with the filter settings for Alice of
and
, and Bob’s at
and
. The four
CHSH experiments give correlation of
,
,
, and
. Any orientations of these field vectors can be used, but those shown in
Figure 4 have the maximum correlation and violates BI. Using the quantum result,
gives,
Whereas each of the filter settings of Alice and Bob are fixed in an experiment, the orientations of Q-spin are not. Rather Q-spin impinges on a filter at random orientations,
, determined at the source. Both spins-1 bosons of Alice and Bob are anti-correlated up until they encounter their space-like separated filters. Then, independently, Alice is pulled to her filter direction, and Bob to his. Each decouples either directly to a fermion, or indirectly as a boson, depending on how far each is from its filter.
However, within a 45∘ wedge, both Alice and Bob can simultaneously exist as bosons and therefore they decouple using the boson algorithm. Outside the wedge, a boson starts to directly decouple into fermions, and the product state takes over.
We conclude that in EPR coincidence experiments,
Figure 3, as
approaches
both Alice and Bob’s spins precess at
as bosons, giving the mustache function. On either side of
, the spins start to decouple into fermions which precess at
and give the triangle correlation. The bosons precession is shown in
Figure 5. A spin makes an angle of
with the field direction. For a spin-
, the angle is
while a spin-1 has an angle of
, thereby supporting the assertion that the boson is precessing in the field before decoupling and is responsible for the violation.
The classical simulation gives more correlation than from QM. CHSH = 2 (2.027) for polarization and 1 (0.968) for the coherence, giving a total of 3 (2.995). Although neither polarization nor coherence violate BI their sum does because EPR coincidence experiments cannot yet distinguish between coincidences that are from polarization and coherence.
The simulated correlation also violates the Tsirel’son bound, [
20]. We assert this is because the quantum calculation uses a singlet state. Note that the classical triangle is reproduced by QM, but the main disagreement is between the simulated and quantum contributions to the coherence. The reason is that the singlet state is an approximation and misses coherent terms. This is shown later in this paper.
The simulation shows that persistent, non-local connectivity between separated EPR pairs is not needed to account for the violation. Rather the missing correlation, given by the mustache function, is due to spin coherence. There is no quantum weirdness.
2.2. EPR Correlation without Non-Locality
Q-spin is defined in Eq.(
2), and has two components in the 3 and 1 directions, Eq.(
5), in the BBF. To compare with experiment, we must calculate the expectation values,
, in the LFF. For this we choose the pure state operator,
, to be, [
7],
Note this is defined in the BFF and there are no contributions from the complementary quaternions since we are not observing in the
hyperspace. Observation of complementary spaces cannot be simultaneous.
For the two components we find the expectation values are complex,
where
, and
a permutation operator, [
5]. The BFF vectors are then transformed to the LFF. An advantage of Q-spin is the expectation values are all unit quaternions which are easy to use since a product of quaternions is also a quaternion.
Consider the correlation between an EPR pair approaching their filters, [
5],
The complex conjugation changes helicity from L to R, and Alice and Bob’s spins have opposite helicities. Also the correlation must be real, so we take into account the two opposite helicity states by the second term. This is similar to forming polarized light from photons. We obtain the full quantum EPR correlation,
, the same as the entangled result, but without any non-local entanglement. The full correlation is obtained from a product state. For this, it is essential that Alice and Bob’s spins both be complex, [
14,
15], and carry helicity.
2.3. Dirac: No Antimatter
Linearizing the Klein-Gordon equation, as Dirac did, led to his four dimensional gamma matrices defined in Minkowski space, . The necessary requirement is they anticommute. From this field the matter-antimatter pair emerged, and spin formalized. In contrast, we use the spin field represented by . Since they too anticommute, they present an alternate and viable linearization of the Klein-Gordon equation.
A perplexing point for Dirac was the twin spins have opposite, or negative, energies from its partner and these went to minus infinity, [
17], which is non-physical. Dirac resolved this by proposing a fermionic continuum of negative energy, and added electrons according to the Pauli principle until the continuum was filled. Holes of antimatter positrons are formed as electrons jump to positive energy. Although this structure might exist in solid state physics, with the bound and conduction bands distinguished, for other systems and single particles, hole theory is a rationalization, not satisfying, and is contrived to resolve a problem.
Since Q-spin has two spins that precess oppositely and in phase,
Figure 2, the two energies must be equal and opposite. This interpretation resolves the negative energy problem Dirac encountered. No sea of electrons is needed.
We do not dispute the existence of antimatter, [
21,
22], but question the Dirac interpretation of its production. Experimentally, only trace amounts are found in the universe from the decay of unstable nuclei. At higher energies, pair particle production also occurs.
If Q-spin was formed at the Big Bang, rather than fermion matter-antimatter pairs, the baryon asymmetry problem is resolved [
23].
3. Bell’s Theorem Is Irrelevant
Bell’s Inequalities, [
24], show that the correlation between real classical properties is bounded. Noting that QM can violate these inequalities, Bell concluded this can only happen if certain hidden variables account for the violation, however these must be non-local. We accept BI, but reject Bell’s Theorem, [
25], which states in his own words,
“If [a hidden-variable theory] is local it will not agree with quantum mechanics, and if it agrees with quantum mechanics it will not be local."
A more formal statement is the impossibility that local hidden variables can reproduce the results of quantum mechanics, with the conclusion that non-locality is a property of Nature. Our work shows that a local theory can violate BI, thereby disproving Bell’s theorem by counterexample, [
6].
We point out that in formulating Q-spin, there are no hidden variables, local or not, and consequently there can be no loopholes, nor hidden mechanism to create non-locality. The only variable in this work is the angle which orients a spin on the Bloch sphere and is a local variable.
Bell only examines classical correlation with BI giving the upper bound. Classical variables are all real; and they form a single commuting convex set. Pure states are extreme points and mixed states are interior points. The proof of Bell’s Theorem is also classical. He used the example for Bertlmann’s different and fading coloured classical socks to show non-local connectivity is needed. Bell had already proven classical correlation is bounded. He then examined under what conditions those classical variables could violate that bound even though he knew no classical correlation could. He arrive, therefore, at the conclusion that the classical hidden variables must be non-local. Since non-locality makes no sense, Bell’s proof should be considered as
,
26]. Attention would logically then shift to finding what is missing that gives the quantum violation of BI. Bell, however, did not take that course. Rather he assumed that quantum variables and classical variables have the same properties.
Quantum systems, in stark contrast to the hidden variables of Bell, do not commute; are complex; are complementary; and form two convex sets. All particles are produced in pure states which remain pure until encountering a polarizing field. On the other hand, Q-spin does not violate BI when viewed as two complementary sources of correlation. That is, polarization and coherence are complementary elements of reality. If experiments could separate the two, then the correlation for these would be CHSH = 2 for polarization and CHSH = 1 for coherence. Neither violates BI and each can be considered a separate experiment.
Bell’s theorem is inapplicable to quantum systems. Q-spin shows that few of Bell’s conclusions about QM are correct, [
25]. BI are an exception. They quantitatively define the “Infamous Boundary” [
27] between the classical and the quantum. For the CHSH form of Bell’s inequalities, the Infamous boundary is 2, [
8].
Bell’s work inspired experiments, [
8,
9,
10], which confirmed QM violates BI. This is regarded as proof that local hidden variable theories must be rejected, and established non-locality as a property of Nature, as evidenced by the 2022 Nobel Prize in physics. This conclusion cannot be supported with Q-spin. Although Bell’s work stimulated research into the foundations and philosophy of quantum mechanics, the view of this work is that non-locality has led physics into unfathomable directions which have hindered progress.
There are a number of no-go theorems in QM. In addition to Bell’s Theorem, [
25], there is the no-cloning theorem, [
28], with its many in-offs, all relying entirely on quantum teleportation, which, as shown below, is unfeasible. The Bell-Kochen-Specker theory, [
25,
29], discusses quantum contextuality. Although this theorem is useful, it is not applicable to Q-spin since their conclusions are valid for three dimensions or more, and Q-spin is two dimensional.
Q-spin is contextual. The outcomes are not known until the particle has reached its filter and is pulled to . Additionally, we deal with pure states only, so there are no compatible observables to influence the outcomes.
Parenthetically, we note in
Figure 3, there is a small simulated correlation from the polarizations that violates Bell’s Theorem with a CHSH = 2.027. It is known that classical simulations can violate BI without non-locality, [
30,
31,
32,
33].
Despite the wide acceptance of Bell’s theorem, there exist a number of critics who also raise cogent doubts about its applicability and use, see [
30,
31,
32,
33,
34,
35,
36,
37,
38,
39,
40,
41,
42,
43,
44,
45].
3.1. Non-Locality vs. Local Realism
An immediate consequence of the inapplicability of Bell’s Theorem is that non-local connectivity is not viable. Out of the myriad descriptions we feel that Wikipedia sums up non-locality the best, [
46]:
“The paradox is that a measurement made on either of the particles apparently collapses the state of the entire entangled system—and does so instantaneously, before any information about the measurement result could have been communicated to the other particle ... and hence assured the “proper" outcome of the measurement of the other part of the entangled pair."
Scholarpedia states [
47], “Bell’s theorem asserts that if certain predictions of QM are correct then our world is non-local. “Non-local" here means that there exist interactions between events that are too far apart in space and too close together in time for the events to be connected even by signals moving at the speed of light."
Without Bell’s Theorem, these definitions cannot be supported.
The violation of BI now takes on an entirely different meaning. Spin polarization and helicity both simultaneously exist as elements of reality; coincidence experiments are sensitive to both; the experimental violation of Bell’s inequalities confirms local realism. Quantum weirdness, [
48], is explained by complex helicity.
The diametrically opposite conclusion is reached in Bell-type experiments of which an enormous literature exists, see
“The Big Bell Test" [
49]. The paper’s conclusion is incorrect claiming local realism is challenged. Rather their data shows just the opposite: evidence for local realism by the existence of elements of reality that account for the violation.
3.2. Quantum Teleportation Is Unfeasible
Quantum teleportation, [
11], depends solely upon long range, non-local, correlation between three entangled particles. The opening paragraph in that paper confirms, “The existence of long range correlations between Einstein-Podolsky-Rosen (EPR) pairs of particles raises the question of their use for information transfer." This statement rests on the now defunct Bell’s Theorem.
Teleportation claims that non-locality is mediated by “Einstein, Podolsky, Rosen Channels", but nowhere are these “channels" formulated and there is no evidence they exist other than Bell’s Theorem. Our work shows they are not needed, and do not exist. In particular the steps up to their Eq.(5), which are critical to quantum teleportation, cannot be justified. This requires swapping entanglement over spacetime separations. When Alice’s spin, 1, is far from Bob’s entangled pair, 23, then the following process is applied which is physically unfeasible:
Therefore their Eq.(5) is impossible and the notion of quantum teleportation collapses. Recall Longuet-Higgins [
50] made the distinction between mathematical operations and feasible operations, like ammonia, NH
3, and methyl fluoride, FCH
3, both have the possibility of umbrella symmetry, but only for ammonia is it feasible.
The concept of quantum teleportation is unfeasible, along with emerging technologies [
51,
52,
53] [
28], that rely it.
The question arises about the results from the above experiments which appear to support non-locality. Quantum cryptography relies on a third party interloper entangling with the communication between Alice and Bob. Using Q-spin, in contrast, any interloper will introduce a local phase change in the helicity, disrupting the transmission, and giving similar outcomes had entanglement persisted. The same approach effects all Bell-type coincidence experiments which rely on non-locality. Examples are entanglement swapping, [
54], delayed choice quantum eraser, [
55], and loop-hole free Bell tests, [
56,
57].
3.3. Quantum Computing
The prospects of having large working quantum computers (QC) has not been realized, [
58]. Major obstacles have inhibited the engineering development which is motivated by extensive theoretical research showing considerable advantages over classical computation.
However, QC uses quantum teleportation and non-local entanglement. As shown here, this approach is unfeasible and must be abandoned, in favour of controlling . Another issue is the stability of qubits which decohere. Therefore, much effort is spent on finding suitable two-state quantum systems that can be controlled and are stable.
Presently the use of electrons in circuitry is based upon EM theory. If spin can be controlled, then the two spin components, with opposite magnetic moments, might serve as stable qubits. Consider the qubit form of Q-spin in the BFF,
The two axes,
and
have opposite magnetic moments, and these project along the field axis,
By controlling
and
, the experimenter can determine which axis will align with the field, thereby giving a deterministic two bit outcome of
. Helicity maintains the orientational information encoded at the source. Spin is a stable property of particles. We note techniques that use NMR are candidates for QC, [
59]. NMR spectroscopy routinely transports polarization and coherence between states, [
60], performing spin "gymnastics", [
61], and producing echos, [
62].
An advantage of Q-spin qubits is the algorithms are products of quaternions.
4. The Singlet State Is Approximate
Entanglement, as Schrödinger famously said [
63] is
difference from classical systems. Without Bell’s theorem, persistence of entanglement between separated pairs is not possible. Therefore we accept entanglement as a vital property of QM but reject that it persists after separation, [
6], to non-local situations.
A singlet state is always expressed by opposing polarized states which are anti-symmetrized,
, where
,
,
We suggest that the
states be replaced by Q-spins. Using
is an approximation and the reason the Tsirel’son bound, [
20], is less than the simulated result of CHSH =3.
We suggest a singlet state of an electron is more realistically expressed as shown in
Figure 6 where the two magnetic axes are attracted which are balanced by the repulsion of the charges. The helicity now spins the axis as shown.
To show the missing parts of the quantum form of the singlet state, Eq.(
14), first take its outer product, and then separate the state operator,
, into a sum of eight non-Hermitian product states, [
64],
The final matrix displays the diagonal polarized states, and the off-diagonal coherent states. This expression leads to the
correlation between the two spins. The off-diagonal coherent terms are responsible for entanglement, [
6]. Dropping them gives a product state,
with no entanglement, [
7].
The eight product states in Eq.(
15 are the possible ways an EPR pair can separate. Each separates randomly into only one of the eight terms in the above sum which represent states of definite polarization and helicity. One term describe left and the other right helicity for each quadrant. We suggest that after initial separation, each spin settles into a trajectory with the disc of polarization spinning along the axis of linear momentum, see
Figure 1, governed by the Intermediate Axis theorem, [
65].
Inserting the Pauli spin matrices into Eq.(
15), and summing the eight terms reproduces the entangled singlet matrix shown in the last line. In the process, coherent terms cancel, and those, we suggest, are responsible for the difference between QM and the classical simulation.
To demonstrate this consider the first quadrant in Eq.(
15) with
, giving the tensor product of two
matrices, one for Alice and one for Bob. They have opposite polarization and helicity. Using these non-Hermitian matrices requires tacit acceptance that polarization and coherence simultaneously exist.
Upon separation, either the left or right handed persists. That is, for each quadrant, at separation, the EPR pair is one of the eight products, for example for the first quadrant,
,
The state with opposite helicity is also possible in the first quadrant, and adding the left
and right
,
matrices, Eq.(
15), leads to a Hermitian matrix for each quadrant,
Permutations of
gives similar matrices for the other three quadrants. Finally summing over the quadrants gives the entangled singlet, Eq.(
15). Comparing the final singlet matrix in Eq.(
17), shows the outer coherent terms, indicated as bold font, cancel in the final sum. We suggest these terms are responsible for violating the Tsirel’son bound, [
20], which leads to the difference between quantum, CHSH
and the simulation, CHSH
.
We conclude that use of the singlet state in QM, Eq.(
14) is an approximation which misses these canceled terms. That is entanglement is a property of QM, but not of Nature. Entanglement simplifies calculation but missing correlation is the price.
5. Black Holes and Wormholes
Suggestions by Maldacena and Susskind [
18] are expressed by the relationship ER=EPR where ER stands for Einstein-Rosen Bridges, (wormholes), [
66], while the EPR [
4], refers to QM and entanglement as a way to quantize spacetime [
67].
Wormholes are solutions to the Einstein Field Equations [
68] and are purely geometric distortions of spacetime, mathematically connecting different spacetime spaces. Maldacena and Susskind suggest that the wormholes are equivalent to, or created by, a pair of entangled black holes, with Alice at one and Bob at the other performing gedanken experiments with credible outcomes.
Although non-local entanglement is not possible, [
7], Q-spin presents an alternative that replaces non-locality. We point to [
6,
69],
,
as perhaps the smallest quantum entity which could be the building blocks of spacetime, with the LHS indicating the smallest component of quantum spin in free-flight, and the RHS indicating the connection to geometry,
The following construction is speculative: consider Minkowski space as composed of a diffuse gas, a lattice, of particles in free-flight with spin
. Each particle has a mass of at least a rest mass, and energy of at least a zero point. These particles attract each other according to an inverse power law like Newton’s Law of gravity, but because space is so diffuse and the masses so small, there is little attraction between the particles. We are assuming that throughout the vastness of space, these particles form the microscopic fabric of spacetime.
In regions where the density and mass increase, these particles pull closer and eventually they merge and coalesce. For
N coalesced points the structure is now
, with Black Holes in the limit that
. Examination of
n-tuples of spin operators, [
70], suggests the first step is to find the irreducible components under the Lorentz Group, and consider the quantization of the resulting structures, not unlike depicted in
Figure 9.
We have found Q-spin with a microscopic dimensional hyperspace. Quantum gravity is a macroscopic force with a far reach. It is suggested to be mediated by a boson with spin of magnitude 2. Whereas we have found that reality must extend to the forth dimensional quaternion projective space, the hypersphere, one can only suggest that gravity is more complicated and likely extends to the next credible projective space of octonions in the hypersphere, or beyond. We do not know the nature of matter and energy in the dark regions of these vast hyperspaces beyond our visualization. All we can know are their stereographic projections into our dimension, and from these observations we must try to visualize what lies beyond our senses.
7. Quantum Coherence
Quantum mechanics is also called wave mechanics because states are expressed as waves. As such they can superpose, interfere, have phase relations and decohere. Waves are expressed using complex functions and superposition creates different states. Above we mentioned the feasible umbrella motion of NH3, and this can be treated as a double well potential separated by a surmountable barrier. The umbrella motion is an example of quantum coherence.
Generally, coherence is distinguished from polarized states by the latter being diagonal elements of the density matrix, and the former being off-diagonal elements, see,
Eq.(
15). We have shown, [
6], that dropping the off-diagonal terms results in a product state devoid of coherence. Without coherence, QM would not violate BI.
Parity arguments, [
5], separate spin spacetime into complementary spaces of even and odd parity. The
symmetry renders one of the BFF axes imaginary,
. This axis connects spin to the
hyperspace of quaternions. Since beyond our spacetime, we assert quaternions are unobservable elements of reality that generate L or R coherent helicity states in spin spacetime. In free-flight it spins the disc and averages away the polarization. Therefore a boson spin displays no polarization, only helicity, to give the wave part of the wave-particle duality.
We deduce the spinning axis of linear momentum carries a quantum of energy. Upon encountering a polarizing field, that energy is transferred to one of the two fermion axes, 3 or 1. When a system absorbs an electron, the Fermi Golden Rule, that quantum of energy is accepted.
Now consider the two axes, 3 and 1. The upper middle panel of
Figure 2, depicts these two axes as the mirror states,
. That is, both precess in tandem in order to maintain their mirror property. They carry the same frequency, but in opposite directions. The small arrow on each precession indicates they are in phase. As such, they constructively interfere to produce the boson spin, which has no physical axis. It is a pure resonance state, like a tuning folk, and is the manifestation of the bivector,
.
A spin-1 boson has no
magnetic quantum number. Suppose the precessions as shown in
Figure 2 are responsible for the
component. Reversing both precessions then gives
. The
component cannot be formed because it would break the mirror symmetry. Neither a photon nor a boson electron has an
component.
The correlation between bosons is responsible for the mustache function. Note the coherent correlation,
, resembles two opposing sine waves reflected at
. The following gives a good fit,
This is plotted in
Figure 8 along with the simulated data points which match Eq.(
24). Also plotted for comparison is the correlation from quantum theory. The simulation gives more correlation, CHSH = 1, than obtained from the singlet state and QM, CHSH = 0.828. We have proposed the difference is due to the singlet state being an approximation.
The doubling of the filter angles,
is due to the boson magnetic moment of
which gives two periods over
. The first period in
Figure 3 starts off at
where Alice and Bob’s spins remain anti-correlated. As
moves to
, the anti-correlation means that the bosons’ magnetic quantum numbers,
m, must be opposite, making the mustache negative up to
. At that point, the two bosons begin to correlate, with equal magnetic quantum numbers, rendering the boson correlation positive.
The second period starts at
, but the bosons remain correlated up to
, after which they are again anti-correlated. Therefore, the boson correlation in the second period starts off positive. The sign of the boson correlation is in tandem with the sign of the correlation from polarization. Note also the sign of the small residual correlation,
Figure 3, is also in tandem. Therefore all three contributions add to the correlation and none subtract, as they physically should.
We view the correlations from polarization (pol) and coherencies (coh) as distinct. By dropping the coherent terms, only fermion electrons remain and the correlation is the triangle in
Figure 3. Putting back the boson spins gives the mustache function, Eq.(
24). However, recall that to get correlation from coherence, both Alice and Bob must be bosons, and both in coherent states, coh-coh. There are four types of coincidences between them: pol-pol, pol-coh, coh-pol, and coh-coh. Therefore, only
of the coincidences lead to coherence, which is the origin of that factor in Eq.(
24).
9. Interpretations of Quantum Mechanics
With Bell’s theorem gone, then so are objections to the locality assumption EPR made. Quantum mechanics is incomplete, [
4]. In our treatment here, we deviate from standard practice, yet stay within a philosophy of the microscopic.
Elements of reality can be non-Hermitian,
Eq.(
2).
Calculate the expectation values using the usual state operator which is Hermitian, positive semi-definite of trace 1,
. Eq.(
8)
Expectation values of non-Hermitian operators can be complex with two complex conjugate states,
Eq.(
9).
Take the real part to obtain the measured value ,
Eq.(
10).
When dealing in complex spaces, non-Hermitian operators lead to the separation of entangled states,
Eq.(
15)
QM must be extended to accommodate spaces beyond our LFF. However, state operators remain in our LFF from which we observe.
In linearizing the Klein-Gordon equation, we did not consider complexifying more than one
matrix since a spin has only one axis to spin. The ± indicates two helicity spaces, [
14,
15]. We have complexified the gamma field in spin spacetime which is governed by a non-Hermitian Dirac equation.
The quaternion field is more fundamental than Dirac’s. The latter leads to the two-spin matter-antimatter pair, two point particles with two states each, while the former leads to one structured particle, Q-spin, with four states: two polarized up or down and two coherent, with helicity L or R.
This section argues that Q-spin gives a deeper and more realistic view of spin than Dirac. First, however, Q-spin becomes a particle in a polarizing field, where most interest lies. In that case, the two possible fermions (left and right panels of
Figure 2) cannot be distinguished from Dirac spin of up and down. We expect quantum calculations based on Q-spin in a field to be identical to those of Dirac spin, albeit with no antimatter twin.
We know of no experiments other than coincidence EPR types, [
8,
9,
10], which are sensitive to the anyon transition. However, one expects that transition to be ubiquitous in Nature.
Figure 9.
Parentage Scheme. The number of linearly independent irreducible representations of weight
ℓ in a spinor of order
p,
96].
Figure 9.
Parentage Scheme. The number of linearly independent irreducible representations of weight
ℓ in a spinor of order
p,
96].
Q-spin is also the first building block of a parentage scheme to higher spins, similar to the Clebsch-Gordan series, [
92]. The dyadic, Eq.(
1), stops at the bivector, but higher n-tuples contain trivectors and higher structures which can be decomposed into irreducible components under some group, [
93] to [
96]. The usual parentage scheme is based upon the addition of spinors, see
Figure 9. Extension to complex Q-spin includes a phase for each spin, and any parentage scheme will likely contain insightful relationships as Q-spin couples to produce spins of higher weight. The way these couple may be crucial steps to understanding some process, like polarization transfer, which depends upon coherence. This implies we must maintain the phase relations in calculations, and only project into our real space when observation is needed.
9.1. Symmetry Change
The results of this paper logically follow by changing the symmetry from one continuous group, SU(2), to another,
, consistent with Noether’s Theorem [
97]. Several of the changes are profound, overturning well-established ideas. These changes remove certain features of QM which, succinctly, do not make sense. Non-locality is called quantum weirdness, [
48], because it defies rational interpretation, yet a vast literature exists based upon non-local entanglement. Additionally, parity violation defies logic. How can a mirror not reflect an actual image of the real world? The existences of an infinitely deep fermionic continua of Dirac seas; non-locality; and persistent entanglement; are indeed “Spooky,” [
98], and, according to Issac Newton, “an absurdity,” [
26]. Q-spin resolves these issues.
Simply finding that a boson electron is odd to parity and a fermion electron is even to parity changes our view of the weak force, the beta particle is a boson, neutrinos are not needed, and parity is no longer violated. Our view of antimatter changes, which subsequently resolves the baryon asymmetry problem. This allows the definition of helicity; defines the complementary spin space of coherence; makes intrinsic angular momentum extrinsic; and provides a clear formulation and mechanism of the wave-particle duality of spin.
9.2. Measurement
If we accept quaternions as elements of reality, we arrive at a description of Nature that extends beyond our spacetime. Despite being a theory of measurements, QM must first treat what we cannot measure,
Eq.(
2) and then project that onto our dimensions,
Eq.(
10). Therefore, QM must include these higher dimensions and treat them as objectively real.
A state density operator is Hermitian,
Eq.(
8). Despite non-Hermitian operators, like
, a state density operator is unchanged in representing what we can observe. However, expectation values can be complex, Eq.(
9), otherwise we miss coherence in our treatments.
Non-Hermitian state operators can separate entangled states into products, [
64]. Whereas the state density operator is defined in Minkowski space, we propose non-Hermitian state operators be used when extending QM to include higher dimensions. All 16 components of Eq.(
15) are non-Hermitian state operators, like each
matrix in Eq.(
16). That is, both polarization, (diagonal element) and coherence (off-diagonal element) are needed to separate the singlet into product states. Once separated, each term can be evaluated and then projected onto our dimensions in the LFF.
Each spin has eight orientations in spin spacetime to form a singlet: four BFF quadrants, and each quadrant has two helicity states. The simulation treats all orientations, [
7] whereas the singlet state alone, as we have shown, cancels coherent terms, Eq.(
17).
All four Bell states can be written as a product of non-Hermitian states, [
64], and these, in turn, can be combined to give Hermitian operators,
For a fuller description of the microscopic, non-Hermitian operators can resolve entangled states into products, and remove approximations. We suggest that any quantum operator can be expressed as a product state when using non-Hermitian states.
9.3. No Wave Function Collapse
Wave function collapse, [
99,
100] describes the change in a quantum system when it undergoes a non-deterministic transition from a superposition of states to a single state due to measurement. This concept primarily applies to individual quantum systems, such as particles like electrons or photons, rather than macroscopic objects like liquids or solids. For such macroscopic systems, the quantum effects are usually averaged out due to the large number of particles involved, [
101,
102,
103]. The collective behavior of atoms and molecules in liquids and solids generally conforms to classical physics rather than quantum mechanics. Therefore, wave function collapse applies at the quantum level, while its direct application to the bulk properties of liquids and solids is limited.
We restrict the discussion, therefore, to single particle processes, like EPR coincidence experiments, molecular beams, , for simplicity. We ignore particle-particle interactions. Q-spin perhaps provides the simplest system that undergoes wave function collapse that we can follow.
We have shown a boson-fermion transition occurs when the boson encounters its filter. From its source, a boson electron carries the two possible outcomes as a spin-1, and not as two fermions states of
. Bosons do not describe matter; do not obey Pauli exclusion, and certainly do not describe a particle in two different states (or places) at the same time, as many express to astonish the layman. When measured, the boson wave "collapses" into a fermion particle, being one of the states
,
Figure 2, left and right panels. As we have shown, the outcome depends upon the initial orientation of the boson axis,
, and that of the filter angle,
. The above "collapse" is deterministic, not random, nor instantaneous. The information is carried by the angle
from the source. This example shows there is no wave function collapse.
Define a particle as the solution to the single particle Schrödinger equation. If we know the initial state, then when measured, that pure state is the only one detected. The outcome is pre-determined at the source. Those initial states are always pure, and remain pure until encountering a field that induces transitions. Inducing a transition is what measurement does.
Quantum mechanics, however, allows us to anticipate the outcome before "collapse" using the Born rule. We simply find the normal modes of the system,
the eigenvalue problem, and this allows us to know the possible outcomes as a superposition, along with a probability for each. That does not reflect the wave before measurement or in free-flight, but rather the possible outcomes if measured over an ensemble of similarly prepared states, [
104].
However, the pure states of particles often carry internal motions, coherences and resonances. Ammonia undergoes its umbrella motion in a few femtoseconds. All structured particles display internal motions. Consider a child blows a bubble. The ground state is a sphere, but that bubble undulates reflecting its creation when the child blew. Molecules are similar, albeit quantum. Valence Bond theory gives resonance structures: Molecular Orbital theory delocalizes electrons over molecules for stability: bonds vibrate; and spins couple. However, in free flight a molecule is like the bubble, it is a wave which expresses its pure state, so when measured, it is the only state observable. When encountering the field, that undulating wave changes in response as the pure state is measured.
9.3.1. Hydrogen Deuteride
To visualize the stages a system might undergo in wave function collapse, we follow hydrogen deuteride, HD, from zero magnetic field to a large value, [
105]. This shows state preparation into a pure state leads to "collapse" into the same pure state at any field value. HD is complicated enough to bring out features, yet simple enough that we can visualize the processes.
HD has three angular momentum: a proton spin,
; a deuterium spin,
, and rotational angular momentum,
. At room temperature, only the
state is significantly populated. In a magnetic field, each displays Zeeman splitting. We note the three gryromagnetic ratios are ordered as
. There is also a coupling Hamiltonian,
, that gives the fine structure and involves spin-spin, spin-rotation and quadruple interactions, etc. From early molecular beam experiments all the coupling constants are known, [
105]. Therefore, the eigenvalue problem is solved and the energy diagram shown in
Figure 10 from zero to high fields.
The proton spin has two states, the deuterium and rotation have three each for a total of 18. From
Figure 10 three regions are identified as these 18 states experience varying field strengths. At zero field, all three spins couple to give the sum,
F. The spectrum of the coupling Hamiltonian gives states of
, and two states each of
and
. As the field increases, those states undergo changes, displaying a variety of rich features: avoiding crossings, line crossings, repulsive and attractions between states and other features are encountered as the 18 zero field states finally settle down into linear Zeeman terms at high fields,
where
.
Figure 11 shows these three cases for low, intermediate and high fields. At zero field the vector
F precesses with two internal precessions. As the field increases, the proton decouples leaving the other two coupled to give
, middle panel, showing one internal precession and two Zeeman terms. Finally at high field, all three are decoupled and precess independently about the field direction, third panel. The analogy with the boson electron "collapsing" to the L and R panels of
Figure 2 is obvious.
In an experiment, each particle is prepared at zero field, and then travels in free flight until encountering a field. It responds continuously and deterministically, as seen in
Figure 10. The states labels remain with its state from low to high fields,
This illustrates our point: at the source a single particle is pure in one state. That prepared state is the same final state that is measured, albeit the measuring process can change that state, like the boson changes to a fermion; and the D and M states for HD. Even if the particle displays undulating resonance motions, like the bubble, it is still in a pure state. We might take that state and decompose it into objects we prefer, like spherical harmonics. No matter what we do, a single particle in free flight is in a pure state, because it cannot be in a mixed one. Therefore, when it is measured, there is no collapse.
Spectroscopy is usually done at high fields, but not always, [
106,
107]. NMR spectroscopy is done on the proton,
, on the deuterium,
and rotational spectroscopy,
. These reveal fine structure due to the coupling Hamiltonian,
.
Usually we do not know as much about a particle as we know for HD. Nonetheless, by definition, single particles are pure. Even though we might not know which state is prepared, Nature does not care. So we use QM to tell us the possible outcomes. Then, when measured, we get the initial pure state we did not know before. We add it to a bin, and wait for the next. After statistically adding, we compare with our predictions. Deviations from experimental data motivate changes to the Hamiltonian.
Every system has its unique properties like HD, but the above details are typical, with different techniques to prepare states for measurement. However, whether known or not, prepare any quantum state like
and release it in free flight,
Figure 10, then that is the only state which can interact with the filter when measured. Although we say a wave function can be a superposition of all the states, when measured we observe only the initially prepared pure state. Rather than collapse from a contrived superposed wave function, the observed outcome is predetermined, and the "old One" does not play dice, [
108].
9.4. The Complex Interpretation
The approach used here is fundamentally different from all other interpretations, and an apt names might be the Twistor, Quaternion or Complex Interpretation. Alternatively, since we always treat pure states, it might be called the Pure State Interpretation. We are compelled to deal with a single particle in a pure state since more than one would include possible decoherence.
The existence of helicity impacts the Einstein-Bohr debates [
3,
108,
109]. Bohr claimed that contrary to Einstein, only the measured property exists in his philosophy of complementarity [
109]. Einstein believed that both elements of reality exist simultaneously. Indeed, both properties of Q-spin exist simultaneously, see
Eqs.(
2),(
16), supporting Einstein. Only one is manifest at any instant, supporting Bohr.
All interpretations, including the Copenhagen, are concerned with the measurement problem and the meaning of reality. Most rely on non-deterministic wave function collapse which we reject. Many also rely the role of the observer, which lacks clarity, is ambiguous and subjective. Ballentine, [
104], rejects interpretations that give the observer a central role in determining reality, which he calls a move to a solipsistic viewpoint. We agree, but from our perspective, QM is burdened by phenomena which defies rationality. The measurement problem, wave function collapse, Bell’s Theorem’s spooky action-at-a-distance, nondeterminism, Dirac’s hole theory, point particle spin, parity violation,
, we assert, are the reasons for confusion, and lack of clarity in the interpretation of QM. Philosophers are put in an untenable position of trying to explain the impossible. This has resulted in exhausting semantic debates, too many to reference, most speculative, confusing, unpublished, and mostly irrelevant, which surround all current interpretations: the resolution of which is doubtful under existing concepts. This has resulted in the mantra of "Shut up and calculate", [
110], and during his famous lectures on physics, Richard Feynman said, "I think I can safely say that nobody understands quantum mechanics". Such pithy phrases are intimidating for many, and undermine the tenet of our intelligent. It is unacceptable that we accept phenomena which defy reason, like non-locality. Our confusion is not due to our inability to follow the logic of Nature, but rather our incomplete and incorrect description of the microscopic. One guiding principle should be, "if it doesn’t make sense, it is probably wrong". We should trust our intuition.
Only two interpretations are microscopic: the ensemble, [
104] and the de Broglie-Bohm, [
111] interpretations. The latter is a hidden variable approach of Bohmian mechanics, but in order to be successful, its “quantum potential” must be non-local.
The Ensemble approach, [
104] is closest to the details of an experiment. It assumes the wave function is an ensemble of similarly prepared systems consistent with the statistical mechanical view. Measurement is ensemble averaging over distinct convex sets, [
112]. We have used von Neumann’s, [
99], treatment of projective measure on a state operator by self-adjoint operators, which are the observables, [
6]. We use the same approach when using non-Hermitian operators which are elements of reality and not directly observable.
Although we believe the Statistical Interpretation provides a realistic and pragmatic approach by focusing on distributions of ensembles to give the statistical nature of quantum predictions, it does not apply to individual particles in pure states and complex fields, which is our approach.
Realizing that Nature exists beyond our ability to measure, we must accept that information is lost upon measurement, [
113], like determining which slit a particle passes. That knowledge disrupts the helicity of spin. The epistemological question is to find methods to account for real properties of Nature we cannot observe. This is not easy, as spin taught us, taking almost 100 years to find helicity as the complementary attribute of spin, the cryptic evidence being the violation of BI, [
24].
Quantum mechanics gives an incomplete description of Nature. Instead, it is a theory of measurement restricted to our spacetime.
Figure 1.
Two properties of Q-spin in free-flight: its polarization axes, and , are perpendicular to its helicity. These two fermionic axes couple to give a boson of spin 1, . The helicity is in the direction of propagation and averages out the polarizations. Q-spin is geometrically identical to a photon in free-flight.
Figure 1.
Two properties of Q-spin in free-flight: its polarization axes, and , are perpendicular to its helicity. These two fermionic axes couple to give a boson of spin 1, . The helicity is in the direction of propagation and averages out the polarizations. Q-spin is geometrically identical to a photon in free-flight.
Figure 2.
The longer arrow denotes the direction of the polarizing field. Middle top: The two mirror states in free flight, and , couple to give a boson spin-1. Left and right: The fermionic axis closer to the field axis aligns, and the boson decouples. These two panels do not indicate two particles but one Q-spin depicted with one or the other axis aligned with the field. Middle bottom: When the boson spin is close to the field, it initially precesses as a spin-1 without decoupling.
Figure 2.
The longer arrow denotes the direction of the polarizing field. Middle top: The two mirror states in free flight, and , couple to give a boson spin-1. Left and right: The fermionic axis closer to the field axis aligns, and the boson decouples. These two panels do not indicate two particles but one Q-spin depicted with one or the other axis aligned with the field. Middle bottom: When the boson spin is close to the field, it initially precesses as a spin-1 without decoupling.
Figure 3.
Plotting EPR correlation versus the angle difference . The blue points give the results of the simulation. The CHSH values are listed and the full correlation is the sum of polarization, the triangle, and coherence, the mustache. Note the, hardly discernible, residual quaternion correlation along the horizontal axis.
Figure 3.
Plotting EPR correlation versus the angle difference . The blue points give the results of the simulation. The CHSH values are listed and the full correlation is the sum of polarization, the triangle, and coherence, the mustache. Note the, hardly discernible, residual quaternion correlation along the horizontal axis.
Figure 4.
Showing both Alice and Bob’s spins by looking along the axis of linear momentum, orthogonal to the screen. Within the two wedges both Alice and Bob’s spins are bosons. The heavy lines are possible filter settings, such that if one axis is Alice’s filter setting, the adjacent setting is Bob’s and so on alternating from Alice and Bob.
Figure 4.
Showing both Alice and Bob’s spins by looking along the axis of linear momentum, orthogonal to the screen. Within the two wedges both Alice and Bob’s spins are bosons. The heavy lines are possible filter settings, such that if one axis is Alice’s filter setting, the adjacent setting is Bob’s and so on alternating from Alice and Bob.
Figure 5.
Displaying the maximum correlation from coherence. Alice sets her filter to and the boson spin-1 aligns. Bob has two settings that will give the maximum violation by applying his filter either along or along at from . Alternately, Alice can set her filter angle to and Bob has two filter settings, and that lead to the maximum correlation. Note that a spin-1 makes an angle of 45∘ with filter directions.
Figure 5.
Displaying the maximum correlation from coherence. Alice sets her filter to and the boson spin-1 aligns. Bob has two settings that will give the maximum violation by applying his filter either along or along at from . Alternately, Alice can set her filter angle to and Bob has two filter settings, and that lead to the maximum correlation. Note that a spin-1 makes an angle of 45∘ with filter directions.
Figure 6.
A possible structure of the singlet with two electrons. While the electric charges repel, the magnetic moments attract. If one spin is in a LH frame, the other is in a RH frame. The helicities are opposite.
Figure 6.
A possible structure of the singlet with two electrons. While the electric charges repel, the magnetic moments attract. If one spin is in a LH frame, the other is in a RH frame. The helicities are opposite.
Figure 7.
The cobalt nuclei are the large spheres. The thick arrows are the magnetic fields. The small arrows are beta particles. The first column is the real world and the last is the mirror world. a) For a symmetrical distribution of beta fermion electrons parity is conserved. b) For a asymmetrical distribution of beta fermion electrons parity is not conserved. c) Using boson electrons, parity is conserved for any distribution.
Figure 7.
The cobalt nuclei are the large spheres. The thick arrows are the magnetic fields. The small arrows are beta particles. The first column is the real world and the last is the mirror world. a) For a symmetrical distribution of beta fermion electrons parity is conserved. b) For a asymmetrical distribution of beta fermion electrons parity is not conserved. c) Using boson electrons, parity is conserved for any distribution.
Figure 8.
The
function given in Eq.(
24) compared to the simulation. Also shown is the correlation from QM showing less than the simulation.
Figure 8.
The
function given in Eq.(
24) compared to the simulation. Also shown is the correlation from QM showing less than the simulation.
Figure 10.
Decoupling of HD: the three angular momenta, produce 18 states and each is uniquely connected as the field varies from low to high. The unique structures are related to the details of the energy diagram. That diagram is expanded on the LHS to show the low field splitting of the degenerate states.
Figure 10.
Decoupling of HD: the three angular momenta, produce 18 states and each is uniquely connected as the field varies from low to high. The unique structures are related to the details of the energy diagram. That diagram is expanded on the LHS to show the low field splitting of the degenerate states.
Figure 11.
The three angular momenta, couple together at low fields to produce the states . At intermediate fields, the proton decouples while the deuterium and rotation remained coupled to . Finally at high fields, all are decoupled, . All states are uniquely connected as the field varies. Note that each case has three precessions.
Figure 11.
The three angular momenta, couple together at low fields to produce the states . At intermediate fields, the proton decouples while the deuterium and rotation remained coupled to . Finally at high fields, all are decoupled, . All states are uniquely connected as the field varies. Note that each case has three precessions.