多光子非线性过程中的振幅平方压缩 |
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引用本文: | 詹佑邦. 多光子非线性过程中的振幅平方压缩[J]. 光学学报, 1992, 12(1): 2-15 |
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作者姓名: | 詹佑邦 |
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作者单位: | 詹佑邦:淮阴师范专科学校物理系, 淮阴 223001
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摘 要: | 本文研究了多光子非线性光学过程中的振幅平方压缩,证明了K光子么正算符Sk(z)(K>2)对非真空相干态的作用在—级近似下会产生振幅平方压缩.以及Sk(z)(K>2,K≠4)对真空态的作用不会产生振幅平方压缩.发现4个光子么正算符S4(z)对真空态的作用可以产生振幅平方压缩,这表明振幅平方压缩是一种独立于二阶压缩、反聚束以及亚泊松统计分布的新的光场非经典效应.
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关 键 词: | 光子 么正算符 振幅平方压缩 光场 |
收稿时间: | 1991-01-11 |
Amplitude-squared squeezing in multiphoton nonlinear processes |
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Abstract: | In this paper the amplitude-squared squeezing in the multiphoton nonlinear optical processes is studied. It is examined that amplitude-squared squeezing can be created in the first order approximation by k-photon unitary operators Sk(z) (K>2) acting on the coherent state |α>(|α|≠0) and one can not be created by Sk(z) (K>2, K≠4) acting on the vacuum state. It is found that amplitude-squared squeezing can be created by 4-photon unitary operator S4(z) acting on the vacuum state and this shows that the amplitude-squared squeezing can be created by 4-photon unitary operator S4(z) acting on the vacuum state and this shows that the amplitude-squared squeezing is a new nonclassical effect of light field which is independent of the second order squeezing, antibunching and sub-poisson statistics. |
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Keywords: | K-photon unitary operator coherent state vacuum state amplitudesquared squeezing |
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