Completely Positive Approximate Solutions of Driven Open Quantum Systems

Farhang Haddadfarshi, Jian Cui, and Florian Mintert
Phys. Rev. Lett. 114, 130402 – Published 1 April 2015
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Abstract

We define a perturbative approximation for the solution of Lindblad master equations with time-dependent generators that satisfies the fundamental property of complete positivity, as essential for quantum simulations and optimal control. With explicit examples we show that ensuring this property substantially improves the accuracy of the perturbative approximation.

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  • Received 22 September 2014

DOI:https://doi.org/10.1103/PhysRevLett.114.130402

© 2015 American Physical Society

Authors & Affiliations

Farhang Haddadfarshi, Jian Cui, and Florian Mintert

  • Freiburg Institute for Advanced Studies, Albert-Ludwigs-Universität, Albertstraße 19, 79104 Freiburg, Germany, Department of Physics, Imperial College London, London SW7 2AZ, United Kingdom

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Issue

Vol. 114, Iss. 13 — 3 April 2015

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