Preparation of states in open quantum mechanics

TL;DR

This paper investigates how state preparation in open quantum systems is affected by initial correlations with the environment, especially in non-Markovian cases, revealing complex influences of preparation procedures.

Contribution

It provides a detailed analysis of preparation effects in non-Markovian open quantum systems with initial correlations, supported by three illustrative examples.

Findings

Preparation procedures influence system and environment states in non-Markovian systems.

Initial correlations cause nontrivial effects on state preparation.

Three concrete examples demonstrate the complex impacts of preparation methods.

Abstract

We study preparation of states for open quantum mechanics. For non-Markovian systems that are initially correlated with the environment, the affects of the preparation procedure are nontrivial. This is due to the indirect affects on the state of the environment induced via the correlations with the system and the act of preparation on the system. We give three concrete examples of preparation procedure to elucidate our claims.