Completely positive approximate solutions of driven open quantum systems

Farhang Haddadfarshi; Florian Mintert; Jian Cui

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Completely positive approximate solutions of driven open quantum systems

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arxiv 1409.6184 v1 pith:NHA7SMMU submitted 2014-09-22 quant-ph cond-mat.other

Farhang Haddadfarshi , Jian cui , Florian Mintert This is my paper

classification quant-phcond-mat.other

keywords approximationperturbativepropertyquantumaccuracyapproximatecompletecompletely

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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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