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Deterministic entanglement concentration

Fumiaki Morikoshi·Masato Koashi
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Abstract

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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Fumiaki Morikoshi, Masato Koashi. 2001-07-24. Deterministic entanglement concentration. https://doi.org/10.1103/physreva.64.022316

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