论文标题

非热物理和主方程

Non-Hermitian physics and master equations

论文作者

Roccati, Federico, Palma, G. Massimo, Bagarello, Fabio, Ciccarello, Francesco

论文摘要

一个长期以来表征开放马尔可夫量子系统演变的工具是GKSL(Gorini-Kossakowski-Sudarshan-Lindblad)主方程。但是,在某些情况下,可以用非富尔顿顿人有效地描述开放量子系统,由于许多非常规的特性,例如出现特殊点,这在过去二十年中引起了极大的兴趣。在这里,我们对这两种不同的方法进行了简短的评论,尤其是旨在突出它们的关系,并说明将非热汉密尔顿的不同方法与GKSL主方程连接到全密度矩阵。

A longstanding tool to characterize the evolution of open Markovian quantum systems is the GKSL (Gorini-Kossakowski-Sudarshan-Lindblad) master equation. However, in some cases, open quantum systems can be effectively described with non-Hermitian Hamiltonians, which have attracted great interest in the last twenty years due to a number of unconventional properties, such as the appearance of exceptional points. Here, we present a short review of these two different approaches aiming in particular to highlight their relation and illustrate different ways of connecting non-Hermitian Hamiltonian to a GKSL master equation for the full density matrix.

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