Deterministic entanglement concentration

Details Deterministic entanglement concentration Deterministic entanglement concentration

2001-07-24

arxiv.org/abs/quant-ph/0107120v1

Phys. Rev. A 64, 022316 (2001)

Physics

Quantum Physics

8 pages, 4 figures, REVTeX

Scientific paper

10.1103/PhysRevA.64.022316

Deterministic extraction of Bell pairs from a finite number of partially entangled pairs is discussed. We derive the maximum number of Bell pairs that can be obtained with probability 1 by local operations and classical communication. It is proved that the optimal deterministic concentration needs only a two-pair collective manipulation in each step, and that a collective manipulation of all entangled pairs is not necessary. Finally, this scheme reveals an entanglement measure for the deterministic concentration.

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