中国物理B ›› 1998, Vol. 7 ›› Issue (3): 174-182.doi: 10.1088/1004-423X/7/3/003

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PREPARATION OF NONCLASSICAL STATES OF A CAVITY FIELD BASED ON A NONLINEAR JAYNES-CUMMINGS MODEL

魏渭, 郭光灿   

  1. Department of Physics and Nonlinear Science Center, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:1997-04-15 修回日期:1997-07-24 出版日期:1998-03-20 发布日期:1998-03-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

PREPARATION OF NONCLASSICAL STATES OF A CAVITY FIELD BASED ON A NONLINEAR JAYNES-CUMMINGS MODEL

WEI WEI (魏渭), GUO GUANG-CAN (郭光灿)   

  1. Department of Physics and Nonlinear Science Center, University of Science and Technology of China, Hefei 230026, China
  • Received:1997-04-15 Revised:1997-07-24 Online:1998-03-20 Published:1998-03-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

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摘要： It is proven in this paper that some kinds of nonclassical quantum states of the cavity field, such as Schr?dinger cat state (amplitude cat or phase cat), sub-Poissonian photon distribution and Fock state, etc., can be generated by conditional meas urements on atoms in the two-photon Jaynes-Cummings model with a Kerr-like medium. The nonlinear constant plays the key modulation role in the preparation of the quantum states, which gives a new controllable parameter for further experi mental researches in this field.

Abstract: It is proven in this paper that some kinds of nonclassical quantum states of the cavity field, such as Schr$\ddot{\rm o}$dinger cat state (amplitude cat or phase cat), sub-Poissonian photon distribution and Fock state, etc., can be generated by conditional meas urements on atoms in the two-photon Jaynes-Cummings model with a Kerr-like medium. The nonlinear constant plays the key modulation role in the preparation of the quantum states, which gives a new controllable parameter for further experi mental researches in this field.

中图分类号:  (Quantum state engineering and measurements)

  • 42.50.Dv
42.65.Hw (Phase conjugation; photorefractive and Kerr effects)