Freiburg 2019 – wissenschaftliches Programm

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FM: Fall Meeting

FM 62: Poster: Open and Complex Quantum Systems

FM 62.3: Poster

Mittwoch, 25. September 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.