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首页> 外文期刊>The Journal of Chemical Physics >FAR-INFRARED PERMANENT AND INDUCED DIPOLE ABSORPTION OF DIATOMIC MOLECULES IN RARE-GAS FLUIDS .2. SPECTRAL THEORY
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FAR-INFRARED PERMANENT AND INDUCED DIPOLE ABSORPTION OF DIATOMIC MOLECULES IN RARE-GAS FLUIDS .2. SPECTRAL THEORY

机译：稀有气体流体中远红外和诱导的偶极分子对偶极子的吸收2。光谱理论

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摘要

We present a spectral theory for the far-infrared absorption spectrum of a very diluted solution of diatomic molecules in a rare-gas fluid, that includes permanent and induced contributions. The absorption coefficient is given as the convolution of a translational spectrum and a rotational spectrum. The former is described in terms of time correlation functions associated to the induced dipole moment. The latter is discussed on the basis of a model consisting of a quantum rigid rotor interacting with a thermal bath, making use of time correlation functions associated to the different anisotropic orders of the solute-solvent intermolecular potential. Non-Markovian and line mixing effects are taken into account. Explicit expressions for the five leading contributions of the induced dipole moment are given. (C) 1995 American Institute of Physics. [References: 45]
机译：我们提出了一种稀有气体流体中非常稀薄的双原子分子溶液的远红外吸收光谱的光谱理论，其中包括永久性和诱发性贡献。吸收系数作为平移光谱和旋转光谱的卷积给出。前者是根据与感应偶极矩相关的时间相关函数来描述的。后者是在包含量子刚性转子与热浴相互作用的模型的基础上进行讨论的，其中利用了与溶质溶剂分子间电势的不同各向异性阶次相关的时间相关函数。考虑了非马尔可夫效应和线混合效应。给出了感应偶极矩的五个主要贡献的明确表达式。 （C）1995年美国物理研究所。 [参考：45]

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