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On the problem of maximizing the transition probability in an \(n\)-level quantum system using nonselective measurements. (English. Russian original) Zbl 1358.81016

Proc. Steklov Inst. Math. 294, 233-240 (2016); translation from Tr. Mat. Inst. Steklova 294, 248-255 (2016).
Summary: We consider the problem of maximizing the probability of transition from a given initial state to a given final state for an \(n\)-level quantum system using nonselective quantum measurements. We find an estimate from below for the maximum of the transition probability for any fixed number of measurements and find the measured observables on which this estimate is attained.

MSC:

81P15 Quantum measurement theory, state operations, state preparations
81Q93 Quantum control
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