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Minimizing decoherence on target in bipartite open quantum systems

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Alain Sarlette
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Abstract

We consider a target quantum system, coupled to an auxiliary quantum system which dissipates rapidly at somewhat adjustable rates. The goal is to minimize the dissipation induced on the target system by this coupling. We use explicit model reduction formulas to express this as a quadratic optimization problem. We prove that maybe counterintuitively, when the auxiliary system dissipates along Hermitian (entropy-increasing) channels, the minimum induced dissipation is reached by maximizing the dissipation rate of the auxiliary system.
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Dates and versions

hal-02393976 , version 1 (04-12-2019)

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  • HAL Id : hal-02393976 , version 1

Cite

Paolo Forni, Alain Sarlette. Minimizing decoherence on target in bipartite open quantum systems. CDC 2019 - 58th IEEE Conference on Decision and Control, Dec 2019, Nice, France. ⟨hal-02393976⟩
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