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壓縮態(tài)光場變耦合系數(shù)雙光子J-C模型的原子的壓縮效應(yīng)
壓縮態(tài)光場變耦合系數(shù)雙光子J-C模型的原子的壓縮效應(yīng)
摘要:本文研究了初始光場為壓縮態(tài)，原子-光場耦合系數(shù)隨時(shí)間變化情形下雙光子過程J-C模型的原子算符的壓縮效應(yīng)。我們運(yùn)用全量子理論討論了原子的初態(tài)、光場的壓縮系數(shù)和系統(tǒng)的耦合系數(shù)對原子算符壓縮的影響。研究結(jié)果表明只有系統(tǒng)只有初態(tài)只有處于原子相干疊加態(tài)時(shí)才出現(xiàn)壓縮效應(yīng)，當(dāng)原子處于非相干疊加態(tài)時(shí)原子算符將不出現(xiàn)壓縮效應(yīng)以及在光場壓縮系數(shù)較小的情形下，出現(xiàn)壓縮效應(yīng)，1旦壓縮系數(shù)較大時(shí)，原子將不出現(xiàn)壓縮，并且我們得出在壓縮系數(shù)相同時(shí)，振幅的幅值對系統(tǒng)的耦合系數(shù)依賴較小。
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(shù)；
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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