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Minimizing decoherence on target in bipartite open quantum systems
2019
2019 IEEE 58th Conference on Decision and Control (CDC)
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.
doi:10.1109/cdc40024.2019.9029583
dblp:conf/cdc/ForniS19
fatcat:xbp3kfpi5rdz5nokxgwcua7woy