In Xu and Kuang (\textit{J. Phys. A: Math. Gen.} 39 (2006) L191), the authors claim that, for single-mode excited entangled coherent states ∣Ψ±(α,m)>, \textquotedblleft the photon excitations lead to the decrease of the concurrence in the strong field regime of ∣α∣2 and the concurrence tends to zero when ∣α∣2→∞". This is wrong.
Cite
@article{arxiv.0905.0799,
title = {Comment on "Single-mode excited entangled coherent states"},
author = {Hong-chun Yuan and Li-yun Hu},
journal= {arXiv preprint arXiv:0905.0799},
year = {2015}
}
Comments
4 apges, 2 figures, submitted to JPA 15 April 2009