Phys. Rev. A 67, 022310 (2003) [6 pages]Local permutations of products of Bell states and entanglement distillationReceived 29 July 2002; published 28 February 2003 We present different algorithms for mixed-state multicopy entanglement distillation for pairs of qubits. Our algorithms perform significantly better than the best-known algorithms. Better algorithms can be derived that are tuned for specific initial states. These algorithms are based on a characterization of the group of all locally realizable permutations of the 4n possible tensor products of n Bell states. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.022310
DOI:
10.1103/PhysRevA.67.022310
PACS:
03.67.-a
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