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arXiv physics/0407023physics.chem-ph
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非谐量子对振动退相的贡献

Anharmonic quantum contribution to vibrational dephasing

Debashis Barik, Deb Shankar Ray

摘要:

基于量子朗之万方程及其相应的哈密顿量,我们计算了立方振子的振动退相率。结果表明,由于势的非谐性引起的首阶量子修正对速率和频移有重要贡献。我们比较了我们的理论估计与那些从实验中获得的小分子$N_2$,$O_2$和$CO$。

英文摘要:

Based on a quantum Langevin equation and its corresponding Hamiltonian within a c-number formalism we calculate the vibrational dephasing rate of a cubic oscillator. It is shown that leading order quantum correction due to anharmonicity of the potential makes a significant contribution to the rate and the frequency shift. We compare our theoretical estimates with those obtained from experiments for small diatomics $N_2$, $O_2$ and $CO$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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