Minimum-error discrimination between a pure and a mixed two-qubit state
نویسندگان
چکیده
منابع مشابه
Minimum-error discrimination between mixed quantum states
We derive a general lower bound on the minimum-error probability for ambiguous discrimination between arbitrary m’s mixed quantum states with given prior probabilities. When m = 2, this bound is precisely the well-known Helstrom limit. Also, we give a general lower bound on the minimum-error probability for discriminating quantum operations. In particular, we show necessary and sufficient condi...
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ژورنال
عنوان ژورنال: Journal of Optics B: Quantum and Semiclassical Optics
سال: 2004
ISSN: 1464-4266,1741-3575
DOI: 10.1088/1464-4266/6/3/005