Optimal phase estimation in quantum networks
نویسندگان
چکیده
منابع مشابه
Optimal phase estimation in quantum networks
We address the problem of estimating the phase φ given N copies of the phase rotation uφ within an array of quantum operations in finite dimensions. We first consider the special case where the array consists of an arbitrary input state followed by any arrangement of the N phase rotations, and ending with a POVM. We optimise the POVM for a given input state and fixed arrangement. Then we also o...
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and Theoretical
سال: 2007
ISSN: 1751-8113,1751-8121
DOI: 10.1088/1751-8113/40/28/s07