Browsing by Author "Zhang, Chi"

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Browsing by Author "Zhang, Chi"

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  • Zhang, Chi; Wang, Guoming; Ying, Mingsheng (American Physical Soc, 2007)
    In this paper, we discuss the problem of determining whether a quantum system is in a pure state, or in a mixed state. We apply two strategies to settle this problem: the unambiguous discrimination and the maximum confidence ...