Collision models in quantum optics

Abstract

Quantum collision models (CMs) provide advantageous case studies for investigating major issues in open quantum systems theory, and especially quantum non-Markovianity. After reviewing their general definition and distinctive features, we illustrate the emergence of a CM in a familiar quantum optics scenario. This task is carried out by highlighting the close connection between the well-known input-output formalism and CMs. Within this quantum optics framework, usual assumptions in the CMs' literature - such as considering a bath of non-interacting yet initially correlated ancillas - have a clear physical origin.

References in corpus (3)

• Composite quantum collision models
• Divisibility of quantum dynamical maps and collision models
• Environmental correlations and Markovian to non-Markovian transitions in collisional models

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