计算物理 ›› 2006, Vol. 23 ›› Issue (2): 249-252.

• 研究论文 • 上一篇    

叠加激发相干态的量子特性

卢道明   

  1. 南平师范高等专科学校, 福建 南平 353000
  • 收稿日期:2005-01-31 修回日期:2005-06-15 出版日期:2006-03-25 发布日期:2006-03-25
  • 作者简介:卢道明(1963-),男,福建永定县,教授,硕士,从事量子光学方面的研究,福建省武夷山市武夷学院电子工程系354300.

Quantum Properties of the Superposition of Excited Coherent States

LU Dao-ming   

  1. Department of Electronic Engineering, Nanping Teachers College, Nanping 353000, China
  • Received:2005-01-31 Revised:2005-06-15 Online:2006-03-25 Published:2006-03-25

摘要: 构造了2个强度相同位相不同的激发相干态的叠加态,并通过数值计算研究了该叠加态的反聚束效应和振幅平方压缩效应随激发光子数m、光场强度x和相位差θ的变化,结果表明:随激发光子数m和光场强度x增大,该量子态的振幅平方压缩均会加深;压缩效应与相位差θ有密切的关系;随光场强度x的增大和激发光子数m的增大,其反聚束效应减弱.

关键词: 激发相干态, 叠加态, 反聚束效应, 振幅平方压缩效应

Abstract: The superposition of two excited coherent states with identical intensity and different phases are constructed. Its antibunching effect and amplitude-squared squeezing are studied numerically. The result shows that as the light intensity and the excited photon number increase, the antibunching effect decreases and the amplitude-squared squeezing increases. The amplitude-squared squeezing is influenced by the phase difference.

Key words: excited coherent state, superposion state, antibunching effect, amplitude-squared squeezing

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