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FM: Fall Meeting
FM 62: Poster: Open and Complex Quantum Systems
FM 62.3: Poster
Wednesday, September 25, 2019, 16:30–18:30, Tents
Exact approach to quantum non-Markovianity in the Caldeira-Leggett model — •Simon Einsiedler, Andreas Ketterer, and Heinz-Peter Breuer — Physikalisches Institut, 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 both the Bures metric (fidelity) and the relative entropy as distance measures for quantum states. This approach enables us to study quantum memory effects in the whole range from weak to strong dissipation.