I. INTRODUCTION
The universe began with the Big Bang, which is a current prevailing scientific opinion. But this Big Bang was not an explosion of 4-dimensional spacetime, which also is a current prevailing scientific opinion, but an explosion of dimensions. More precisely, in the
-dimensional void, a 0-dimensional point appeared implying the appearance of countably infinitely other points indistinguishable from the first one. The breach made by the first operation of the
dimensional successor function of the Peano axioms inevitably continued leading to the formation of 1-dimensional, real and imaginary lines allowing for an ordering of points using multiples of real units (ones) or imaginary units (
1,
). Then out of two lines of each kind, crossing each other only at one initial point
, the dimensional successor function formed 2-dimensional
,
, and
Euclidean planes, with
being a mirror reflection of
. And so on, forming
n-dimensional Euclidean spaces
with
real and
imaginary lines,
, and the scalar product defined by
where
.
With the onset of the first 0-dimensional point, information began to evolve [
1,
2,
3,
4,
5,
6].
However, dimensional properties are not uniform. Concerning regular convex
n-polytopes in natural dimensions, for example, there are countably infinitely many regular convex polygons, five regular convex polyhedra (Platonic solids), six regular convex 4-polytopes, and only three regular convex
n-polytopes if
[
7]. In particular, 4-dimensional euclidean space is endowed with a peculiar property known as exotic
[
8]. This property allowed for variation of phenotypic traits within populations of individuals [
9] perceiving emergent Euclidean
space of three real and one imaginary (time) dimension observer-dependently [
10] and at present [
11] when
is
real. The evolution of information extended into biological evolution.
Each dimension requires certain units of measure. In real dimensions, the
natural units of measure were introduced by Max Planck in 1899 as "independent of special
bodies or
substances, thereby necessarily retaining their meaning for all times and for all civilizations, including extraterrestrial and non-human ones" [
12].
This study introduces the complementary set of Planck units applicable for imaginary dimensions, including the imaginary base units, and outlines certain prospects for their research. As the speed of electromagnetic radiation is the product of its wavelength and frequency (which are real and positive), and both these quantities are imaginary in imaginary dimensions, some real but negative parameter corresponding to the speed of light in vacuum c (i.e., the Planck speed) is also necessary as . It turns out that the imaginary Planck energy and temperature are larger in moduli than the Planck energy and temperature Thus, the minimum energy principle sets more favorable conditions for biological evolution to emerge in Euclidean space than in Euclidean one.
The study shows that the energies of neutron stars and white dwarfs exceed their mass–energy equivalences. Therefore, the excess of these energies must be stored in imaginary dimensions and is inaccessible to direct observations. This results in the upper bound on the slope of the radius of their cores as a function of their masses.
The paper is structured as follows. Section II shows that Fresnel coefficients for the normal incidence of electromagnetic radiation on monolayer graphene introduce the second, negative fine-structure constant as a fundamental constant of nature. Section III shows that nature endows us with the imaginary base Planck units by this second fine-structure constant. Section IV introduces the concept of a black-body object in thermodynamic equilibrium emitting black-body radiation and discusses its necessary properties. Section V introduces two complex energies of masses and charges and applies them to black-body objects. Section VI introduces four additional complex energies of masses, charges, and wavelengths to derive the black-body object equilibrium, correcting the photon sphere radius of general relativity. Section VII summarizes the findings of this study.
II. THE SECOND FINE-STRUCTURE CONSTANT
Numerous publications provide Fresnel coefficients for the normal incidence of electromagnetic radiation (EMR) on monolayer graphene (MLG), which are remarkably defined only by
and the fine-structure constant
Transmittance (
T) of MLG
for normal EMR incidence was derived from the Fresnel equation in the thin-film limit [
13] (Eq. 3), whereas spectrally flat absorptance (
A)
was reported [
14,
15] for photon energies between about
and
[eV].
T was related to reflectance (
R) [
16] (Eq. 53) as
, i.e,
The above equations for
T and
R, as well as the equation for the absorptance
were also derived [
17] (Eqs. 29-31) based on the thin film model (setting
for substrate).
The sum of transmittance (3) and the reflectance (4) at normal EMR incidence on MLG was also derived [
18] (Eq. 4a) as
where
is the vacuum impedance
ϵ0 is vacuum permittivity,
is the MLG conductivity [
19], and
is the electric susceptibility of vacuum.
These coefficients are thus well-established theoretically and experimentally confirmed [
13,
14,
15,
18,
20,
21].
As a consequence of the conservation of energy
In other words, the transmittance in the Fresnel equation describing the reflection and transmission of EMR at normal incidence on a boundary between different optical media is, in the case of the 2-dimensional (boundary) of MLG, modified to include its absorption.
The reflectance
(4) of MLG can be expressed as a quadratic equation with respect to
having two roots with reciprocals
Therefore, the quadratic equation (9) includes the second, negative fine-structure constant
.
The sum of the reciprocals of these fine-structure constants (10) and (11)
is remarkably independent of the reflectance
R. (The same result can be obtained for the sum of
T and
A, as shown in
Appendix A).
Furthermore, this result is intriguing in the context of a peculiar algebraic expression for the fine-structure constant [
22]
that contains a
free term and is very close to the physical definition (2) of
, which according to the CODATA 2018 value is
. Notably, the value of the fine-structure constant is not
constant but increases with time [
23,
24,
25,
26,
27]. Thus, the algebraic value given by (13) can be interpreted as the asymptote of the
increase.
Using relations (12) and (13), we can express the negative reciprocal of the 2
nd fine-structure constant
that emerged in the quadratic equation (9) also as a function of
only
and this value can also be interpreted as the asymptote of the
decrease with the current value ammounting to
, assuming the rate of change is the same for
and
.
Using relations (13) and (14), transmittance
T (3), reflectance
R (4), and absorptance
A (5) of MLG for normal EMR incidence can be expressed just by
. Furthermore, equation (9) includes two
-like constants for two surfaces with positive and negative Gaussian curvatures (cf.
Appendix B).
III. -SET OF PLANCK UNITS
Planck units can be derived from numerous starting points [
5,
28] (cf.
Appendix C). The definition of the Planck charge
can be solved for the speed of light yielding
. Furthermore, the ratio of charges definition of the fine-structure constant
(2) applied for the negative
, requires an introduction of some imaginary Planck charge
so that its square would yield a negative value of
Since the elementary charge
e is real
and almost all physical constants of the
term, almost all are positive
2. Only the
parameter, corresponding to the speed of light, must be negative as both frequency
and wavelength
are imaginary in imaginary dimensions. Therefore, equation (16) can be solved for
yielding
which is greater than the speed of light in vacuum
c in modulus
3.
The negative parameter
(17) introduces the imaginary set of base Planck units
,
,
,
, and
that redefined by square roots containing
raised to an odd (1, 3, 5) power become imaginary and bivalued
and can be expressed, using the relation (31), in terms of base Planck units
,
,
,
, and
.
Planck units derived from the imaginary base units (19)-(21) are generally not imaginary. The
Planck volume
the
Planck momentum
the
Planck energy
and the
Planck acceleration
are imaginary and bivalued. However, the
Planck force
and the
Planck density
are real and bivalued. On the other hand, the
Planck area
is strictly negative, while the Planck area
is strictly positive.
Both
and
introduce the second, negative vacuum impedance
Solving both impedances (7) and (30) for
and comparing with each other yields the following important relation between the speed of light in vacuum
c, negative parameter
, and the fine-structure constants
,
where, notably,
is the electron’s velocity at the first circular orbit in the Bohr model of the hydrogen atom. This is not the only
to
relation. Along with the two
-like constants (relations (B8) and (B10), cf.
Appendix B)
The relations between time (21) and temperature (22)
Planck units are inverted,
,
, and saturate Heisenberg’s (energy-time version) uncertainty principle taking energy from the equipartition theorem for one degree of freedom (or one bit of information [
5,
29])
Furthermore, eliminating
and
from (18)-(20), yield
and
Base Planck units themselves admit negative values as negative square roots. By choosing complex analysis, within the framework of emergent dimensionality [
5,
9,
11,
30,
31], we enter into bivalence by the very nature of this analysis. All geometric
objects have both positive and negative volumes and surfaces [
31] equal in moduli. On the other hand, imaginary and negative physical quantities are the subject of research. In particular, the subject of scientific research is thermodynamics in the complex plane. Lee–Yang zeros, for example, have been experimentally observed [
32,
33].
We note here that the imaginary Planck Units are not imaginary due to being multiplied by the imaginary unit
i. They are imaginary numbers
due to the negativity of odd powers of
being the square root argument; thus, they define imaginary physical quantities inaccessible to direct measurements
4. The complementary Planck units do not apply only to the time dimension but to any imaginary dimension. However, in our four-dimensional Euclidean
space-time, Planck units apply in general to the spatial dimensions, while the imaginary ones in general to the imaginary temporal dimension, wherein the seemingly interchangeable meaning of the Planck imaginary length
and time
requires further research. All the complementary Planck units have physical meanings. However, some of them are elusive, like the negative area or imaginary volume, which require two or three orthogonal imaginary dimensions.
IV. Black Body Objects
There seem to be only three observable
objects in nature that emit perfect black-body radiation: unsupported black holes (BH, the densest), neutron stars (NS), supported, as it is accepted, by neutron degeneracy pressure, and white dwarfs (WD), supported by electron degeneracy pressure (the least dense). We shall collectively call them black-body
objects (BBO). It has recently been experimentally confirmed that the so-called
accretion instability is a fundamental physical process [
34] common for all BBOs.
As black-body radiation is radiation emitted by a body in global thermodynamic equilibrium, it is patternless (thermal noise) radiation and depends only on the temperature of this body. In the case of BHs, this is known as Hawking radiation, wherein the BH temperature
, where
is the Planck temperature, is a function of the BH diameter [
5]
, where
. (in the following d is also called a diameter) and ℓ
P is the Planck length.
As Hawking radiation depends only on the diameter of a BH, it must be the same for a given BH, even though it is momentary as it fluctuates (cf.
Appendix D). As the interiors of the BBOs are inaccessible to an exterior observer [
35], BBOs do not
enclose interiors and can only be defined by their diameters (cf. [
5] Fig. 2(b)). The term
object as a collection of
matter is a misnomer in general, as it neglects quantum nonlocality. But it is a particularly staring misnomer if applied to BBOs. Thus we use emphasis for (indistinguishable)
particle and (distinguishable)
object, as well as for
matter and
distance, as these terms have no absolute meaning in emergent dimensionality. In particular, given the recent observation of
quasiparticles in classical systems [
36].
But not only BBOs are perfectly spherical. Also, the early epochs of their collisions must be perfectly spherical, as it has been recently, experimentally confirmed [
37] for NSs based on the AT2017gfo kilonova data. One can hardly expect a collision of two perfectly spherical, patternless thermal noises to produce some aspherical pattern instead of another perfectly spherical patternless noise. Where would the information about this pattern come from at the moment of the collision? From the point of impact? No point of impact is distinct on a patternless surface.
As black-body radiation is patternless, the triangulated [
5] BBOs, as well as their early epoch collisions, must contain a balanced number of Planck area triangles, each carrying binary potential
, as it has been shown for BHs [
5], based on Bekenstein-Hawking entropy
where
is the BH information capacity (i.e., the number of the triangular Planck areas at the BH horizon, corresponding to bits of information [
29,
35,
38] and the fractional part triangle
to small to carry a single bit of information), [
sic!]) and
is the BH (Schwarzschild) radius. The BH entropy (36) can be derived from the Bekenstein bound
an upper limit on the thermodynamic entropy
S that can be contained within a sphere of radius
R having energy
E, where
kB is the Boltzmann constant and
ℏ is the reduced Planck constant, after plugging the BH radius
and energy
EBH =
MBHc2 taken from mass-energy equivalence into the bound (37).
Since the patternless nature of the perfect black-body radiation was derived [
5] by comparing BH entropy (36) with the binary entropy variation
([
5] Eq. (55)), which is valid for any holographic sphere, where
denotes the number of active Planck areas with binary potential
, the BH entropy (36) must be valid also for NSs and WDs. Thus, defining the generalized radius of a holographic sphere of mass
M as a function of
multiplier
[
5]
and the generalized energy
E of this sphere as a function of
multiplier
a
where
k,
a,
:
k ≤ 2
the generalized Bekenstein bound (37) becomes
where
is the information capacity of this sphere, the surface of which contains
Planck triangles, where "
" is the floor function that yields the greatest integer less than or equal to its argument
x.
The generalized Bekenstein bound (40) equals the BH entropy (36) if
. Thus, the energy of all BBOs having a radius (38) is
with
in the case of
BHs and
for
NSs and
WDs.
Schwarzschild BHs are fundamentally uncharged, contrary to NSs and WDs, since the entropy (36) of any BH is equal to that of the uncharged Schwarzschild BH with the same area by the Penrose process. It is accepted that in the case of NSs, electrons combine with protons to form neutrons, but it is never the case that all electrons and all protons become neutrons. WDs are charged by definition as they are composed mostly of electron-degenerate matter.
As the entropy of independent systems is additive, a collision of two
BBOs,
BBO1 and
BBO2, having entropies
and
, produces another
having entropy
This shows that a collision of two primordial BHs, each having the Planck length diameter, the reduced Planck temperature
(which is the largest physically significant temperature [
11]), and no tangential acceleration
[
5,
11], produces a BH having
which represents the minimum BH diameter allowing for the notion of time [
11], while a collision of the latter two BHs produces a BH having
having the triangulation defining only one precise diameter between its poles (cf. [
5] Fig. 3(b)). Diameter
is also recovered [
5] from Heisenberg’s Uncertainty Principle (cf.
Appendix C).
The hitherto considerations may be unsettling for the reader, as the energy (45) of BBOs other than BHs exceeds mass-energy equivalence for , which is the limit of the maximum real energy. Thus, a part of the energy of NSs and WDs must be imaginary and thus unmeasurable. We shall consider this question in the subsequent section.
V. COMPLEX ENERGIES
A complex energy formula
where
and
represent respectively real and imaginary energy of an
object having mass
and charge
5, and
is the imaginary-real energy ratio
6, was proposed in [
39] (Eqs. (1), (3), and (4)). Equations (43) and (44) consider real (physically measurable) masses
and charges
.
Planck charge relations (2) and (16) imply that the elementary charge
e is the same both in real and imaginary dimensions since
On the other hand, there is no physically meaningful
elementary mass that would satisfy the relation (20)
Thus, as to the modulus, charges are the same in real and imaginary dimensions, while masses are different. We note that the same form of the relations (45) and (46) reflect the same form of Coulomb’s law and Newton’s law of gravity, which are inverse-square laws.
In the following, where deemed appropriate, dimensional quantities were discretized using Planck units as
although the discretization of charges by integer multipliers
q of the elementary charge
e is far-fetched, considering the fractional charge of
quasiparticles.
We shall now modify the equation (43) to a form involving imaginary masses
and charges
by defining the following two complex energies, the complex energy of real mass
M and imaginary charge
Qi
and the complex energy of real charge
Q and imaginary mass
Mi
where
We note in passing that using the different speed of light parameters in energies
(49) and
(48) yields a contradiction (cf.
Appendix F).
Equations (48)-(51) yield two different quanta of the charge-dependent energies corresponding to the elementary charge, the imaginary quantum
and the - larger in modulus - real quantum
Furthermore,
,
.
The squared moduli of the energies (48) and (49) can be expressed as
and (using relations (31) and (20))
If we assume these moduli are equal, we shall obtain the value of the imaginary mass
Mi corresponding to an object having mass
M and charge
Q
as an equation with three unknowns
M,
Mi, and
q.
In particular for an uncharged mass
M (
) this yields
Since mass
is imaginary by definition, the argument of the square root in the relation (56) must be negative
which means that masses of uncharged micro
BHs (
) can be arbitrary but micro NSs and micro WDs cannot be observed, as achieving a net charge
is impossible in this case. Even a single elementary charge renders the mass
comparable to the mass of a grain of sand.
We conjecture that the threshold (58) pertains solely to charged distinguishable objects having masses larger than the threshold of distinguishability [
5] of
(i.e., masses having Compton wavelengths smaller than the Planck length). A hypothetical (indistinguishable) element at this threshold would have an atomic number
corresponding to
q, which-as we conjecture - sets the limit on an extended periodic table, and is lower that the accepted limit of 300 [
40].
We can interpret the modulus of the generalized energy of
BBOs (41) as the modulus of the complex energy of real mass (54), taking the observable real energy
of the
BBO as the real part of this energy. Thus
which is real for
k ≥ 2 and for
k = 2 confirms vanishing net charge of
BHs. Similarly, we can interpret the modulus of the generalized energy of
BBOs (41) as the modulus of the complex energy of real charge (55). Thus
Substituting
from the relation (59) into the relation (60) yields
which for
BHs (
) also corresponds to the relation (57) between uncharged masses
M and
, where no assumptions concerning the BBO energy were made.
Furthermore, the argument of the square root in the relation (61) must be negative, as mass
is imaginary by definition. This leads to the maximum
multiplier
Relations (59) and (61) are shown in
Figure 1.
The relation (62) sets the upper bound on the
BBO radius (38) and energy (39)
where
RBH is the radius of the
BH having a mass of the
BBO. As
WDs are the least dense
BBOs, this bound defines the maximum radius of a
WD core.
Furthermore, combining the minimum mass threshold (58) with the maximum mass multiplier threshold (62) of the charged
BBO radius yields the minimum charge required for a given
BBO diameter
Thus for example 1-bit BBO (
) corresponds to
,
-bit BBO (
) requires
.
These results show that the radius (42) of charged BBOs (i.e., BBOs other than BHs) is a continuous function of
; the largest
k satisfying the BBO entropy relation (36), a necessary condition of patternless perfect black body radiation [
5]. We shall consider this question in the subsequent section.
VI. MASS, CHARGE, EMR - PHOTON SPHERE RADIUS
Besides complex energies of masses and charges (48), (49)
we can also define the complex energies of real wavelength and imaginary mass/charge
ERMi,
ERQi
and of imaginary wavelength and real mass/charge E
MRi, E
QRi,
where we applied discretizations (47). The energies (67)-(70) link the electromagnetic radiation with gravity/inertia and electrodynamics within the framework of emergent dimensionality.
Complex energies (65)-(70) are real-to-imaginary
balanced if moduli of their real and imaginary parts are equal. This holds for
Furthermore, complex energies (65)-(70) define complex forces between two
objects acting over real and imaginary
distances (cf.
Appendix E).
This time, comparing the squared moduli of the energies(65)-(70) with the squared BBO energy (41) yield a solvable system of six equations with six unknowns
k,
q,
m,
mi,
l,
li
Substituting
from
to
recovers the Compton wavelength of the
BBO,
, in its discrete form
.
Furthermore, by substituting
and the Compton mass
into
, and comparing the LHSs of
and
we obtain the
BBO equilibrium multiplier
at which all the moduli (72) are equal. The equilibrium multiplier
(73) is related to the bound
(62) by
. Also, the following relations can be derived from the relations (72) for the BBO in the equilibrium
(73)
where in the last relation, we used the definition (50) and applied the relation (74).
Notably, , where is the multiplier of a radius of the maximal sustainable density for gravitating spherical matter given by Buchdahl’s theorem, and 3 is the multiplier of a BH photon sphere radius.
This shows that is a true photon sphere radius, where BBO gravity, charge, and photon energies remain at equilibrium. Aside from the Schwarzschild radius (derivable from escape velocity of mass M by setting ), all the remaining thresholds of general relativity, such as Buchdahl’s threshold () or a photon sphere radius (), are only crude approximations. It must be so, since general relativity neglects the value of the fine-structure constants and , which, similarly as or the base of the natural logarithm, are the fundamental constants of nature.
VII. DISCUSSION
The reflectance of graphene under the normal incidence of electromagnetic radiation expressed as the quadratic equation for the fine-structure constant includes the 2nd negative fine-structure constant . The sum of the reciprocal of this 2nd fine-structure constant with the reciprocal of the fine-structure constant (2) is independent of the reflectance value R and remarkably equals simply . Particular algebraic definition of the fine-structure constant , containing the free term, can be interpreted as the asymptote of the CODATA value , the value of which increases with time. The negative fine-structure constant introduces the complementary set of Planck units applicable to imaginary dimensions, including imaginary Planck units (18)-(26). Real and imaginary mass and charge units (34), length and mass units (35) units, and temperature and time units (33) are directly related to each other. Also, the elementary charge e is common for real and imaginary dimensions (45).
Applying the complementary Planck units to a complex energy formula [
39] yields complex energies (48), (49) setting the atomic number
as the limit on an extended periodic table.
The generalized energy (41) of all perfect black-body objects (black holes, neutron stars, and white dwarfs) having the generalized radius exceed mass-energy equivalence if . Complex energies (50), (51) allow for storing the excess of this energy in their imaginary parts, inaccessible for direct observation. The results show that the perfect black-body objects other than black holes cannot have masses lower than and that the maximum slope of the radius of their cores as a function of mass is defined, as , by the relation (62). It is further shown that a black-body object is in the equilibrium of complex energies if its radius (73). It is conjectured that this is the correct value of the photon sphere radius.
The findings of this study inquire further research in the context of information-theoretic approach [
1,
2,
3,
4,
5,
6] and emergent dimensionality [
9,
30,
31].
In the context of the results of this study, monolayer graphene, a truly 2-dimensional material with no thickness
7, is a
keyhole to other, unperceivable [
5], dimensionalities. Graphene history is also instructive. Discovered in 1947 [
42], graphene was long considered an
academic material until it was eventually pulled from graphite in 2004 [
43] by means of ordinary Scotch tape
8. These fifty-seven years, along with twenty-nine years (1935-1964) between the condemnation of quantum theory as
incomplete [
44] and Bell’s mathematical theorem [
45] asserting that it is not true, and the fifty-eight years (1964-2022) between the formulation of this theorem and 2022 Nobel prize in physics for its experimental
loophole-free confirmation, should remind us that Max Planck, the genius who discovered Planck units, has also discovered Planck’s principle.