Article
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Preserved in Portico This version is not peer-reviewed
Symmetric Logarithmic Derivative of Fermionic Gaussian States
Version 1
: Received: 21 May 2018 / Approved: 22 May 2018 / Online: 22 May 2018 (05:52:11 CEST)
A peer-reviewed article of this Preprint also exists.
Carollo, A.; Spagnolo, B.; Valenti, D. Symmetric Logarithmic Derivative of Fermionic Gaussian States. Entropy 2018, 20, 485. Carollo, A.; Spagnolo, B.; Valenti, D. Symmetric Logarithmic Derivative of Fermionic Gaussian States. Entropy 2018, 20, 485.
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.
Keywords
quantum metrology; fermionic gaussian state; quantum geometric information
Subject
Physical Sciences, Condensed Matter Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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