Physics – Quantum Physics
Scientific paper
2007-05-13
Physics
Quantum Physics
6 pages, 1 figure, errors modified
Scientific paper
10.1103/PhysRevLett.99.170401
We show that in principle, $N$-partite unitary transformations can be perfectly discriminated under local measurement and classical communication (LOCC) despite of their nonlocal properties. Based on this result, some related topics, including the construction of the appropriate quantum circuit together with the extension to general completely positive trace preserving operations, are discussed.
Guo Guang-Can
Zhang Yongsheng
Zhou Xiangfa
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