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arXiv · 2112.14424

Bound on local minimum-error discrimination of bipartite quantum states

Donghoon Ha·Jeong San Kim
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Abstract

We consider the optimal discrimination of bipartite quantum states and provide an upper bound for the maximum success probability of optimal local discrimination. We also provide a necessary and sufficient condition for a measurement to realize the upper bound. We further establish a necessary and sufficient condition for this upper bound to be saturated. Finally, we illustrate our results using an example.

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Donghoon Ha, Jeong San Kim. 2021-12-29. Bound on local minimum-error discrimination of bipartite quantum states. https://doi.org/10.1103/physreva.105.032421

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