A Practical Scheme for Entanglement Concentration

Details A Practical Scheme for Entanglement Concentration A Practical Scheme for Entanglement Concentration

2001-04-09

arxiv.org/abs/quant-ph/0104039v1

Physics

Quantum Physics

9 pages, 1 figure (to be published in Phy.Rev.A)

Scientific paper

10.1103/PhysRevA.64.014301

We present a realistic purification scheme for pure non-maximally entangled states. In the scheme, Alice and Bob at two distant parties first start with two shared but less entangled photon pairs to produce a conditional four-photon GHZ state, then perform a 45-degree polarization measurement onto one of the two photons at each party such that the remaining two photons are projected onto a maximally entangled state.

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