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压缩态光场变耦合系数双光子J-C模型的原子的压缩效应

时间:2017-08-11 数学毕业论文 我要投稿

压缩态光场变耦合系数双光子J-C模型的原子的压缩效应
 
摘要:本文研究了初始光场为压缩态,原子-光场耦合系数随时间变化情形下双光子过程J-C模型的原子算符的压缩效应。我们运用全量子理论讨论了原子的初态、光场的压缩系数和系统的耦合系数对原子算符压缩的影响。研究结果表明只有系统只有初态只有处于原子相干叠加态时才出现压缩效应,当原子处于非相干叠加态时原子算符将不出现压缩效应以及在光场压缩系数较小的情形下,出现压缩效应,1旦压缩系数较大时,原子将不出现压缩,并且我们得出在压缩系数相同时,振幅的幅值对系统的耦合系数依赖较小。
关键词: 量子光学;J-C模型;压缩态;双光子;原子算符压缩;耦合系数; 

The Time Dependent Atom-Filed Coupling J-C Model with an Initial Squeezing State: Two-Photon process And The Squeezing  Of  Atomic
 
Abstract: The quantum statistical properties of two photon Jaynes-Cummings model with a time-dependent atom-field coupling coefficient are discussed under the initial squeezing state of the light filed. We use all the quantum theory of atoms in the initial states, Light compression coefficient and the coupling coefficient of atomic operator compression effects. The results show only system only in the initial state only atomic coherent superposition state will arise squeezing, When the atoms at the non-coherent superposition state atoms operator will not emerge squeezing and squeezing in optical coefficient smaller cases, there squeezing effect, once compression coefficient is relatively large, the atom will not emerge compression, and we see that in the same compression coefficient, amplitude of the amplitude of the system is relatively less dependent coupling coefficient
   
Key words: quantum optics; Jaynes-Cummings models; Two-Photon process; Squeezing state
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