Abstract This paper presents a method for generating entanglement molecules, which is introduced by Dur (2001 Phys. Rev. A). In this scheme, N ladder-type three-level atoms are sent through a resonant weak coherent cavity field, then the system states are measured. And the system field may collapse onto some possible types of entanglement molecules. Meanwhile it discusses about the interaction time from the experimental point of view, and compare the result with the previous scheme proposed by Huang (2004 J. Phys. B: At. Mol. Opt. Phys.).
Received: 26 October 2007
Revised: 08 September 2008
Accepted manuscript online:
Fund: Project supported by the Natural
Science Foundation of Fujian Province of China (Grant No T0650007)
and Funds from Education
Department of Fujian Province of China (Grant No JB06041).
Cite this article:
Su Wan-Jun(苏万钧), Yang Zhen-Biao(杨贞标), and Wu Huai-Zhi(吴怀志) Generation of entanglement molecules via weak coherent field in cavity QED 2009 Chin. Phys. B 18 593
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