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Symmetric Logarithmic Derivative of Fermionic Gaussian States
Published 27 Dec 2019 in quant-ph | (1912.12313v1)
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 ranges from quantum Metrology with thermal states and non-equilibrium steady states with Fermionic many-body systems.
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