Local permutations of products of Bell states and entanglement distillation

Details Local permutations of products of Bell states and entanglement distillation Local permutations of products of Bell states and entanglement distillation

2002-07-26

arxiv.org/abs/quant-ph/0207154v1

Phys. Rev. A 67, 022310 (2003)

Physics

Quantum Physics

6 pages, 1 figure

Scientific paper

10.1103/PhysRevA.67.022310

We present new algorithms for mixed-state multi-copy 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. The new algorithms are based on a characterization of the group of all locally realizable permutations of the 4^n possible tensor products of n Bell states.

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