Non-Markovian quantum interference in multilevel quantum systems: Exact master equation approach

TL;DR

This paper develops exact non-Markovian master equations to analyze quantum interference in multilevel systems, revealing the environment's memory effects on quantum dynamics over various time scales.

Contribution

It introduces an exact master equation approach to study non-Markovian quantum interference in multilevel systems, highlighting environmental memory's role.

Findings

Non-Markovian effects induce quantum interference patterns.

Environmental memory influences quantum dynamics across multiple time scales.

Exact master equations effectively capture non-Markovian quantum phenomena.

Abstract

We study the non-Markovian quantum interference phenomenon of a multi-state atomic system coupled to a bosonic dissipative environment by using the exact master equations derived in this paper. Two examples involving four-level systems with or without external control fields are investigated. Our results show that non-Markovian master equations are capable of exhibiting quantum interference phenomena in a temporal domain that has not fully explored before. In particular, we show that the environmental memory is instrumental in the onset of non-Markovian quantum interference pattern in different time scales.