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FRANCESCO CICCARELLO

Non-Hermitian Physics and Master Equations

  • Authors: Federico Roccati; Gioacchino Massimo Palma; Francesco Ciccarello; Fabio Bagarello
  • Publication year: 2022
  • Type: Articolo in rivista
  • OA Link: http://hdl.handle.net/10447/583092

Abstract

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.