Nonperturbative stochastic dynamics driven by strongly correlated colored noises

TL;DR

This paper derives an exact stochastic equation for open quantum systems influenced by correlated non-Markovian baths, revealing how bath correlations and memory effects significantly impact quantum dynamics and entanglement.

Contribution

It introduces the first exact stochastic dynamical equation for systems coupled to correlated noises and explores their profound effects on quantum coherence and entanglement.

Findings

Quantum dynamics are modulated by bath correlations and memory times.

Strong bath correlations can generate high entanglement between distant qubits.

New physical effects observed in super-radiation states due to bath correlations.

Abstract

We establish for the first time an exact stochastic dynamical equation for an open quantum systems coupled to correlated noises. We rigorously investigate the nonequilibrium dynamics of a qubit system under the influence of two strongly correlated non-Markovian baths by exactly solving the stochastic Schr\"{o}dinger equation of an open quantum system. We show that the quantum dynamics of the qubit system is profoundly modulated by the mutual correlation between baths and the bath memory times through dissipation and fluctuation. We report a new physical effect on generating large values of the inner-correlation and entanglement of the distant two qubits arising from the strong bath correlation for a class of super-radiation states.