Optimal Control of Open Quantum Systems: Cooperative Effects of Driving and Dissipation

R. Schmidt, A. Negretti, J. Ankerhold, T. Calarco, and J. T. Stockburger
Phys. Rev. Lett. 107, 130404 – Published 21 September 2011
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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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  • Received 5 October 2010

DOI:https://doi.org/10.1103/PhysRevLett.107.130404

© 2011 American Physical Society

Authors & Affiliations

R. Schmidt1, A. Negretti2, J. Ankerhold1, T. Calarco2, and J. T. Stockburger1

  • 1Institut für Theoretische Physik, Universität Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany
  • 2Institut für Quanteninformationsverarbeitung, Universität Ulm, Albert-Einstein-Allee 11, 89069 Ulm, Germany

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Issue

Vol. 107, Iss. 13 — 23 September 2011

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