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arXiv · 1202.2616

Efficient entanglement concentration for three-photon W states with parity check measurement

Yu-Bo Sheng·Lan Zhou·Sheng-Mei Zhao
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Abstract

We present an optimal entanglement concentration ECP for an arbitrary less-entangled W state. By two of the parties say Alice and Charlie performing one parity check measurements, they can obtain the maximally entangled W state with a certain probability. Otherwise, they can obtain another lesser-entangled W state with another probability, which can be used to reconcentrated into a maximally entangled W state. By iterating this ECP several times, it has the maximal success probability. This ECP maybe an optimal one and is useful in current quantum information processing.

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Yu-Bo Sheng, Lan Zhou, Sheng-Mei Zhao. 2012-02-13. Efficient entanglement concentration for three-photon W states with parity check measurement. https://arxiv.org/abs/1202.2616

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