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Symmetric Logarithmic Derivative of Fermionic Gaussian States
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Submitted:
21 May 2018
Posted:
22 May 2018
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Abstract
In this article we derive a closed form expression for the symmetric logarithmic derivative of Fermionic Gaussian states. This provides a direct way of computing the quantum Fisher Information for Fermionic Gaussian states. Applications range from quantum Metrology with thermal states to non-equilibrium steady states with Fermionic many-body systems.
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Subject: Physical Sciences - Condensed Matter Physics
Copyright: This open access article is published under a Creative Commons CC BY 4.0 license, which permit the free download, distribution, and reuse, provided that the author and preprint are cited in any reuse.
Symmetric Logarithmic Derivative of Fermionic Gaussian States
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