Remote extraction and destruction of spread qubit information

Details Remote extraction and destruction of spread qubit information Remote extraction and destruction of spread qubit information

2007-11-12

arxiv.org/abs/0711.1699v1

Phys. Rev. A 77, 062340 (2008)

Physics

Quantum Physics

14 pages, 2 figures

Scientific paper

10.1103/PhysRevA.77.062340

Necessary and sufficient conditions for deterministic remote extraction and destruction of qubit information encoded in bipartite states using only local operations and classical communications (LOCC) are presented. The conditions indicate that there is a way to asymmetrically spread qubit information between two parties such that it can be remotely extracted with unit probability at one of the parties but not at the other as long as they are using LOCC. Remote destruction can also be asymmetric between the two parties, but the conditions are incompatible with those for remote extraction.

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