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QI: Fachverband Quanteninformation

QI 10: Quantum Information: Concepts and Methods I

QI 10.5: Vortrag

Mittwoch, 11. März 2026, 10:30–10:45, BEY/0137

Characterizing Criteria of Non-Markovian Dynamics and Quantum Memory — •Nick Maryshchak, Charlotte Bäcker, and Walter Strunz — Dresden University of Technology, Dresden, Germany

The occurrence of non-Markovianity in the dynamics of open quantum systems gives rise to the classification of memory phenomena. While in classical dynamics, non-Markovian processes are well defined, there is no unique quantum analogue. Several concepts of quantum non-Markovianity have been proposed, based for example on divisibility of the quantum map or on distinguishability of quantum states. We examine the fraction of non-Markovian dynamics in regard to different criteria in the state space of time-discrete dynamics. A growing debate is whether these memory effects are of truly quantum origin. In the subclass of non-Markovian dynamics, we examine different proposed witnesses for quantum memory and their relation among themselves.

Keywords: Open Quantum Systems; non-Markovianity; Quantum Dynamics; Quantum Memory