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arXiv · 1307.2676

Efficiency of Entanglement Concentration by Photon Subtraction

W. Maimaiti·S. Mancini
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Abstract

We introduce a measure of efficiency for the photon subtraction protocol aimed at entanglement concentration on a single copy of bipartite continuous variable state. We then show that iterating the protocol does not lead to higher efficiency than a single application. In order to overcome this limit we present an adaptive version of the protocol able to greatly enhance its efficiency.

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W. Maimaiti, S. Mancini. 2013-08-24. Efficiency of Entanglement Concentration by Photon Subtraction. https://doi.org/10.1088/0031-8949%2F2014%2Ft160%2F014028

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