Experimental determination of the dynamics of a molecular nuclear wave packet via the spectra of spontaneous emission.
Experimental determination of the dynamics of a molecular nuclear wave packet via the spectra of spontaneous emission.
复制标题
通过自发发射光谱实验测定分子核波包的动力学。
DOI：
10.1103/physrevlett.70.3388
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发表时间：
1993
影响因子：
8.6
通讯作者：
Radzewicz
中科院分区：
文献类型：
--
作者：
Dunn;Sweetser;Walmsley;Radzewicz
利用自发辐射的时间分辨谱和频率分辨谱研究了钠二聚体核自由度中的波包动力学。这种技术允许一个跟踪的核波包动力学在一个单一的激发电子态在其周期性轨迹的一个重要部分。光谱中的量子拍频可以部分地解释为核间间距初始随机分布的经典演化。我们观察到的膨胀和收缩的波包是一个正交压缩态的特征
The dynamics of a wave packet in the nuclear degree of freedom of a sodium dimer have been studied via the time- and frequency-resolved spectrum of spontaneous emission. This technique allows one to track the nuclear wave packet dynamics in a single excited electronic state over a substantial fraction of its periodic trajectory. The quantum beats in the spectrum may be partially interpreted in terms of the classical-like evolution of an initially random distribution of internuclear separations. We observe the expansion and contraction of the wave packet that is characteristic of a quadrature squeezed state