Asymptotic Entanglement and Lindblad Dynamics: a Perturbative Approach

TL;DR

This paper develops a perturbative method to analyze entanglement in stationary states of open quantum systems governed by Lindblad dynamics, especially when dissipative effects are added to reversible unitary evolution.

Contribution

It introduces a novel perturbative approach to study entanglement in Lindblad dynamics with dissipative perturbations on unitary systems.

Findings

Provides a framework for analyzing stationary entanglement in dissipative quantum systems

Applies the method to physically relevant cases of dissipative perturbations

Enhances understanding of the interplay between dissipation and entanglement in open quantum systems

Abstract

We consider an open bipartite quantum system with dissipative Lindblad type dynamics. In order to study the entanglement of the stationary states, we develop a perturbative approach and apply it to the physically significant case when a purely dissipative perturbation is added to the unperturbed generator which by itself would produce reversible unitary dynamics.