Yu-Bo Sheng, Lan Zhou, Wei-Wen Cheng, Long-Yan Gong, Sheng-Mei Zhao
We present an efficient entanglement concentration protocol (ECP) for mobile
electrons with charge detection. This protocol is quite different from other
ECPs for one can obtain a maximally entangled pair from a pair of
less-entangled state and a single mobile electron with a certain probability.
With the help of charge detection, it can be repeated to reach a higher success
probability. It also does not need to know the coefficient of the original
less-entangled states. All these advantages may make this protocol useful in
current distributed quantum information processing.
View original:
http://arxiv.org/abs/1202.2666
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