Efficiency of Entanglement Concentration by Photon Subtraction
Quantum Physics
2015-06-16 v2 Information Theory
math.IT
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.
Keywords
Cite
@article{arxiv.1307.2676,
title = {Efficiency of Entanglement Concentration by Photon Subtraction},
author = {W. Maimaiti and S. Mancini},
journal= {arXiv preprint arXiv:1307.2676},
year = {2015}
}
Comments
6 pages, 3 figures, accepted by Physica Scripta