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Q: Fachverband Quantenoptik und Photonik

Q 16: Quantum Information (Concepts and Methods) III

Q 16.4: Vortrag

Dienstag, 10. März 2020, 14:45–15:00, e001

An exact approach to quantum non-Markovianity and entropy production in the Caldeira-Legget model — •Simon Einsiedler, Andreas Ketterer, and Heinz-Peter Breuer — Albert-Ludwigs-Universität, Freiburg, Germany

Employing the exact analytical solution of the Caldeira-Leggett model, a paradigmatic model for an open quantum system, we study the non-Markovian quantum dynamics for arbitrary couplings, temperatures and frequency cutoffs. Non-Markovianity is quantified using the Bures metric (fidelity) as distance measure for quantum states. This approach allows us to study quantum memory effects in the whole range from weak to strong dissipation. Furthermore we use a recently proposed expression for the entropy production in non-equilibrium processes to investigate the relation between mutual information and intra environment correlations for a finite number of bath modes.