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arXiv · 1010.0940

Optimal control of open quantum systems: cooperative effects of driving and dissipation

Rebecca Schmidt·Antonio Negretti·Joachim Ankerhold·Tommaso Calarco·Jürgen T. Stockburger
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Abstract

We investigate the optimal control of open quantum systems, in particular, the mutual influence of driving and dissipation. A stochastic approach to open-system control is developed, using a generalized version of Krotov's iterative algorithm, with no need for Markovian or rotating-wave approximations. The application to a harmonic degree of freedom reveals cooperative effects of driving and dissipation that a standard Markovian treatment cannot capture. Remarkably, control can modify the open-system dynamics to the point where the entropy change turns negative, thus achieving cooling of translational motion without any reliance on internal degrees of freedom.

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Rebecca Schmidt, Antonio Negretti, Joachim Ankerhold, Tommaso Calarco, Jürgen T. Stockburger. 2011-09-28. Optimal control of open quantum systems: cooperative effects of driving and dissipation. https://doi.org/10.1103/physrevlett.107.130404

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