Stuttgart 2012 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 67: Quanteneffekte: Verschränkung und Dekohärenz 2

Q 67.3: Talk

Friday, March 16, 2012, 14:30–14:45, V7.01

Optimal Control of open quantum systems: Cooperative effects of driving and dissipation — •Rebecca Schmidt, Jürgen T. Stockburger, and Joachim Ankerhold — Institut für Theoretische Physik, Universität Ulm, Albert-Einstein-Allee 11, 89069 Ulm

We formulate a consistent approach for the optimal control of open quantum systems [1]. In particular, the mutual influence of driving and dissipation is investigated. Therefore we combine optimal control techniques with an exact description of the non-Markovian open system dynamics by means of stochastic Liouville-von Neumann equations [2]. The application to a harmonic degree of freedom reveals cooperative effects of driving and dissipation. Extension of our work to entangled states exposed to dissipation is discussed.

[1] R. Schmidt, A. Negretti, J. Ankerhold, T. Calarco and J.T. Stockburger, Phys.Rev.Lett. 107, 130404 (2011)

[2] J.T. Stockburger and H. Grabert, Phys.Rev.Lett. 88, 170407 (2002)