Entanglement swapping in two independent Jaynes-Cummings models Q. H. Liao, G. Y. Fang, Y. Y. Wang, M. A. Ahmad and S. Liu Eur. Phys. J. D, 61 2 (2011) 475-479 Published online: 20 October 2010 DOI: 10.1140/epjd/e2010-00261-x