费米子高斯态的对称对数导数
Symmetric Logarithmic Derivative of Fermionic Gaussian States.
作者信息
Carollo Angelo, Spagnolo Bernardo, Valenti Davide
机构信息
Department of Physics and Chemistry, Group of Interdisciplinary Theoretical Physics, Palermo University and CNISM, Viale delle Scienze, Ed. 18, I-90128 Palermo, Italy.
Department of Radiophysics, Lobachevsky State University of Nizhni Novgorod, 23 Gagarin Avenue, Nizhni Novgorod 603950, Russia.
出版信息
Entropy (Basel). 2018 Jun 22;20(7):485. doi: 10.3390/e20070485.
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.
在本文中，我们推导了费米子高斯态对称对数导数的封闭形式表达式。这为计算费米子高斯态的量子费舍尔信息提供了一种直接方法。其应用范围从热态的量子计量学到费米子多体系统的非平衡稳态。
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