期刊
OPEN SYSTEMS & INFORMATION DYNAMICS
卷 29, 期 1, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S1230161222500044
关键词
Non-Hermitian; exceptional points; master equations; open quantum systems; quantum optics
资金
- MIUR
- Palermo University
- G. N. F. M. of the INdAM
This article provides a brief review of the GKSL master equation and non-Hermitian Hamiltonians, highlighting their relationship and illustrating different ways to connect the latter to the former for describing the full density matrix.
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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