Deterministic entanglement concentration
Quantum Physics
2009-11-07 v1
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.
Cite
@article{arxiv.quant-ph/0107120,
title = {Deterministic entanglement concentration},
author = {Fumiaki Morikoshi and Masato Koashi},
journal= {arXiv preprint arXiv:quant-ph/0107120},
year = {2009}
}
Comments
8 pages, 4 figures, REVTeX