# System-environment correlations and Markovian embedding of quantum non-Markovian dynamics

@article{Campbell2018SystemenvironmentCA, title={System-environment correlations and Markovian embedding of quantum non-Markovian dynamics}, author={Steve Campbell and Francesco Ciccarello and G. Massimo Palma and Bassano Vacchini}, journal={Physical Review A}, year={2018} }

We study the dynamics of a quantum system whose interaction with an environment is described by a collision model, i.e., the open dynamics is modeled through sequences of unitary interactions between the system and the individual constituents of the environment, termed ``ancillas,'' which are subsequently traced out. In this setting, non-Markovianity is introduced by allowing for additional unitary interactions between the ancillas. For this model, we identify the relevant system-environment…

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