中国物理B ›› 1998, Vol. 7 ›› Issue (2): 115-125.doi: 10.1088/1004-423X/7/2/004

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QUANTUM CORRELATION IN PHOTOREFRACTIVE THREE WAVE MIXING: SEMICLASSICAL APPROACH

吕亚军1, 张培林1, 李师群1, 吴令安2   

  1. (1)Department of Modern Applied Physics, Tsinghua University , Beijing 100084, China; (2)Institute of Physics, Academia Sinica, Beijing 100080, China
  • 收稿日期:1997-04-28 修回日期:1997-08-15 出版日期:1998-02-20 发布日期:1998-02-20
  • 基金资助:
    Project Supported by the National Natural Science Foundation of China.

QUANTUM CORRELATION IN PHOTOREFRACTIVE THREE-WAVE MIXING: SEMICLASSICAL APPROACH

Lü YA-JUN (吕亚军)a, WU LING-AN (吴令安)b, ZHANG PEI-LIN (张培林)a, LI SHI-QUN (李师群)a   

  1. a Department of Modern Applied Physics, Tsinghua University , Beijing 100084, China; b Institute of Physics, Academia Sinica, Beijing 100080, China
  • Received:1997-04-28 Revised:1997-08-15 Online:1998-02-20 Published:1998-02-20
  • Supported by:
    Project Supported by the National Natural Science Foundation of China.

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摘要： Quantum fluctuations of the fields for three-wave mixing in photorefractive media with drift nonlinearity and nonlocal response are investigated, using a semiclassical input-output theory. It is shown that quantum cor relation and anticorrelation among the three modes will change according to the relative intensity ratio and the direction of energy transfer between the signal and reference modes. The fluctuations in the intensity difference of the two signal modes can be reduced below the corresponding shot-noise level.

Abstract: Quantum fluctuations of the fields for three-wave mixing in photorefractive media with drift nonlinearity and nonlocal response are investigated, using a semiclassical input-output theory. It is shown that quantum cor relation and anticorrelation among the three modes will change according to the relative intensity ratio and the direction of energy transfer between the signal and reference modes. The fluctuations in the intensity difference of the two signal modes can be reduced below the corresponding shot-noise level.

中图分类号:  (Phase conjugation; photorefractive and Kerr effects)

  • 42.65.Hw
42.50.Lc (Quantum fluctuations, quantum noise, and quantum jumps)