Regensburg 2013 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 7: Poster I

DY 7.3: Poster

Montag, 11. März 2013, 17:30–19:30, Poster C

Strong driving in open quantum systems: Beyond Markovian dynamics — •Christine Brix and Jürgen T. Stockburger — Institut für Theoretische Physik, Universität Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany

Strong driving of an open quantum system typically leads to a breakdown of the commonly used strategy of Born, Markov, and RWA approximations. Hence, the typical quantum optical master equation (Lindblad type) becomes unreliable. Here we present a non-RWA equation of motion which preserves the initially given separable structure of the interaction, keeping the dissipative terms "agnostic" of the system Hamiltonian which may contain driving of arbitrary strength and time dependence. In contrast to previous work the resulting stochastic equation of motion can now be cast in a form that does not involve a sign problem. This gain in efficiency allows new applications in both quantum information and chemical physics.