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QI: Fachverband Quanteninformation

QI 16: Concepts and Methods I

QI 16.6: Vortrag

Mittwoch, 8. März 2023, 12:15–12:30, B302

Trajectory Representation of non-Markovian Quantum Dynamics — •Charlotte Bäcker, Konstantin Beyer, and Walter Strunz — Technische Universität Dresden, 01062 Dresden

The Markovian evolution of quantum systems can be described with the help of the well-known GKSL master equation. Quantum non-Markovianity is often associated with some backflow of information from the environment into the system. This backflow of information is closely related to the presence of memory effects and can result in negative decay rates in Lindblad-type master equations.

We address the question of whether such memory effects have to be quantum or if they can be modelled by classical memory only. We show how to obtain non-Markovian Lindblad-type master equations with time-dependent decay rates from trajectories described by consecutive classically conditioned measurements.