Open AccessEntanglement swapping in the process of two-level atoms interacting with cavity fields of coherent states*
Author(s) -
Lai Zhen-jiang,
Zhiyong Yang,
Jintao Bai,
Sun Zhong-yu
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.3733
Subject(s) - physics , quantum entanglement , w state , quantum mechanics , state (computer science) , coherent states , coupling (piping) , quantum information , atomic system , quantum , atomic physics , computer science , mechanical engineering , engineering , algorithm
From the viewpoint of quantum information theory, a multiatom and muticavity system was investigated. In the system the interaction between the atoms and the fi elds in the cavities is described by the intensity-dependent coupling Jaynes-Cummings model. It is found that the atomic maximal entangled state can be transformed into the maximal odd-even-like coherent entangled state, whereas the maximal odd-even-like coherent entangled state also can be transfor med into the atomic maximal entangled state.