Berlin 2015 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 26: Quantum Dynamics, Decoherence and Quantum Information (jointly with DY)

TT 26.9: Talk

Monday, March 16, 2015, 17:15–17:30, BH-N 334

Computing the Markovian dynamics of periodically driven systems — •Daniel Pagel, Andreas Alvermann, and Holger Fehske — Institut für Physik, Ernst-Moritz-Arndt-Universität, 17487 Greifswald, Germany

The dissipative dynamics of a quantum system that is weakly coupled to an environment can be studied with Markovian master equations. Solution of the master equation requires the choice of a computational basis. In this work we describe how exact diagonalization and the Floquet approach can be combined in a solution strategy for the master equation that is applicable also for periodically driven systems. For the example of strongly coupled quantum bits, where the usually employed quantum optical master equation has to be replaced by the master equation in the coupled eigenbasis, we compute the dissipative dynamics of initially entangled states and study the properties of the asymptotic state using correlation functions.