壓縮態(tài)光場(chǎng)變耦合系數雙光子J-C模型的原子的壓縮效應

壓縮態(tài)光場(chǎng)變耦合系數雙光子J-C模型的原子的壓縮效應
 
摘要:本文研究了初始光場(chǎng)為壓縮態(tài)，原子-光場(chǎng)耦合系數隨時(shí)間變化情形下雙光子過(guò)程J-C模型的原子算符的壓縮效應。我們運用全量子理論討論了原子的初態(tài)、光場(chǎng)的壓縮系數和系統的耦合系數對原子算符壓縮的影響。研究結果表明只有系統只有初態(tài)只有處于原子相干疊加態(tài)時(shí)才出現壓縮效應，當原子處于非相干疊加態(tài)時(shí)原子算符將不出現壓縮效應以及在光場(chǎng)壓縮系數較小的情形下，出現壓縮效應，1旦壓縮系數較大時(shí)，原子將不出現壓縮，并且我們得出在壓縮系數相同時(shí)，振幅的幅值對系統的耦合系數依賴(lài)較小。
關(guān)鍵詞： 量子光學(xué)；J-C模型；壓縮態(tài)；雙光子；原子算符壓縮；耦合系數； 

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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