Entanglement dynamics: Generalized master equation for uniformly accelerated two-level systems

TL;DR

This paper introduces a generalized master equation to analyze entanglement dynamics of two-level systems under acceleration, revealing phenomena like entanglement harvesting and sudden death.

Contribution

It develops a new formalism for open quantum systems that accounts for different accelerations and proper times of moving two-level systems.

Findings

Demonstrates entanglement harvesting from a quantum field.

Shows entanglement sudden death for different accelerations.

Provides a framework for entanglement dynamics in relativistic settings.

Abstract

We propose a new form for the quantum master equation in the theory of open quantum systems. This new formalism allows one to describe the dynamics of two-level systems moving along different hyperbolic trajectories with distinct proper times. In the Born-Markov approximation, we consider a quantum massless scalar field coupled with two-level systems. Starting from a separable state we show the emergence of entanglement harvesting. For different proper accelerations we verify also the entanglement sudden death.