Deterministic generation of entangled coherent states for two atomic samples
Lu Dao-Ming(卢道明)a) and Zheng Shi-Biao(郑仕标)b)†
a Department of Electronic Engineering, Wuyi University, Wuyishan 354300, China; b Department of Electronic Science and Applied Physics, Fuzhou University, Fuzhou 350002, China
Abstract This paper proposes an efficient scheme for deterministic generation of entangled coherent states for two atomic samples. In the scheme two collections of atoms are trapped in an optical cavity and driven by a classical field. Under certain conditions the two atomic samples evolve from an coherent state to an entangled coherent state. During the interaction the cavity mode is always in the vacuum state and the atoms have no probability of being populated in the excited state. Thus, the scheme is insensitive to both the cavity decay and atomic spontaneous emission.
Received: 30 June 2008
Revised: 03 August 2008
Accepted manuscript online:
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