Ha Donghoon, Kim Jeong San
Department of Applied Mathematics and Institute of Natural Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea.
Sci Rep. 2022 Aug 19;12(1):14130. doi: 10.1038/s41598-022-18496-y.
We consider the unambiguous discrimination of multipartite quantum states and provide an upper bound for the maximum success probability of optimal local discrimination. We also provide a necessary and sufficient condition 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 examples in multidimensional multipartite quantum systems.
我们考虑多体量子态的无歧义区分,并给出最优局域区分的最大成功概率的上界。我们还给出了实现该上界的充要条件。我们进一步建立了该上界达到饱和的充要条件。最后,我们用多维多体量子系统中的例子来说明我们的结果。