中国物理B ›› 2008, Vol. 17 ›› Issue (3): 789-793.doi: 10.1088/1674-1056/17/3/009

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Generation of nonclassical states in a large detuning cavity

张英杰, 任廷琦, 夏云杰   

  1. epartment of Physics, Qufu Normal University, Qufu 273165,China
  • 收稿日期:2007-06-12 修回日期:2007-10-10 出版日期:2008-03-04 发布日期:2008-03-04
  • 基金资助:
    Project supported by the National Science Foundation of China (Grant No 10774088), the Key Program of National Science Foundation of China (Grant No 10534030) and the Funds from Qufu Normal University, China (Grant No XJ0621).

Generation of nonclassical states in a large detuning cavity

Zhang Ying-Jie(张英杰), Ren Ting-Qi(任廷琦), and Xia Yun-Jie(夏云杰)†   

  1. epartment of Physics, Qufu Normal University, Qufu 273165,China
  • Received:2007-06-12 Revised:2007-10-10 Online:2008-03-04 Published:2008-03-04
  • Supported by:
    Project supported by the National Science Foundation of China (Grant No 10774088), the Key Program of National Science Foundation of China (Grant No 10534030) and the Funds from Qufu Normal University, China (Grant No XJ0621).

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摘要： By using the theory of cavity QED, we study the system in which a two-level atom interacts with a cavity in the case of large detuning. Through the selective detecting of atomic state, Schr\"{o}dinger cat states and entangled coherent states are easily generated. When the atom is driven by a weak classical field and the cavity field is in the Schr\"{o}dinger cat state, we study the conditions of generating the Fock states and the maximal success probability. The maximal success probability in our scheme is larger than the previous one.

关键词: quantum optics, the Fock state, Schr\"{o}dinger cat state, entangled coherent state

Abstract: By using the theory of cavity QED, we study the system in which a two-level atom interacts with a cavity in the case of large detuning. Through the selective detecting of atomic state, Schrödinger cat states and entangled coherent states are easily generated. When the atom is driven by a weak classical field and the cavity field is in the Schrödinger cat state, we study the conditions of generating the Fock states and the maximal success probability. The maximal success probability in our scheme is larger than the previous one.

Key words: quantum optics, the Fock state, Schr?dinger cat state, entangled coherent state

中图分类号:  (Cavity quantum electrodynamics; micromasers)

  • 42.50.Pq
02.50.Cw (Probability theory) 42.50.Dv (Quantum state engineering and measurements)