Abstract Based on the idea of adiabatic evolution, we propose two probabilistic but simple schemes for generating maximally entangled states for two distant atoms and concentrating unknown atomic entangled states. Taking advantage of adiabatic passage, the atoms have no probability of being excited and thus the atomic spontaneous emission is suppressed. Furthermore, in the two schemes accurate adjustment of the interaction time is not required.
Received: 11 October 2006
Revised: 05 December 2006
Accepted manuscript online:
PACS:
42.50.Dv
(Quantum state engineering and measurements)
Cite this article:
Ye Sai-Yun(叶赛云) Generation and concentration of atomic entangled state via adiabatic evolution 2007 Chinese Physics 16 2968
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