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arXiv 1202.4046quant-ph
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热分子包层中的相干振转回复

Coherent Ro-vibrational Revivals in a Thermal Molecular Ensemble

Martin Bitter, Evgeny A. Shapiro, Valery Milner

摘要:

我们报道了氮分子热系综振动相干性演化的实验和理论研究。通过相干反斯托克斯拉曼散射检测振动相干性的旋转退相和再定相。振转耦合的存在和旋转浴的离散能谱导致一个全新的类的完整和分数振转复苏。在纳秒时间尺度上,亚皮秒时间分辨率的丰富的振转动力学使我们能够确定二阶振转常数$gamma_e$和评估控制退相干的新的可能性。

英文摘要:

We report an experimental and theoretical study of the evolution of vibrational coherence in a thermal ensemble of nitrogen molecules. Rotational dephasing and rephasing of the vibrational coherence is detected by coherent anti-Stokes Raman scattering. The existence of ro-vibrational coupling and the discrete energy spectrum of the rotational bath lead to a whole new class of full and fractional ro-vibrational revivals. Following the rich ro-vibrational dynamics on a nanosecond time scale with sub-picosecond time resolution enables us to determine the second-order ro-vibrational constant $gamma_e$ and assess new possibilities of controlling decoherence.

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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