Alignment of D-State Rydberg Molecules
Alignment of D-State Rydberg Molecules
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DOI：
10.1103/physrevlett.112.143008
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发表时间：
2014-04-11
影响因子：
8.6
通讯作者：
Schmelcher, P.
中科院分区：
文献类型：
--
作者：
Krupp, A. T.;Gaj, A.;Schmelcher, P.
本文报道了在超冷铷原子云中通过光缔合作用形成超长程里德堡D态分子。通过施加10 G量级的磁偏置场和高分辨率光谱，我们能够分辨出单个的振转分子态。一个完整的理论，使用费米赝势的方法，包括s-和p-波散射项，再现测得的结合能。计算的分子波函数表明，在实验中，我们可以选择性地激发相对于磁场轴具有异常程度的排列或反排列的分子稳态。
We report on the formation of ultralong-range Rydberg D-state molecules via photoassociation in an ultracold cloud of rubidium atoms. By applying a magnetic offset field on the order of 10 G and high resolution spectroscopy, we are able to resolve individual rovibrational molecular states. A full theory, using a Fermi pseudopotential approach including s- and p- wave scattering terms, reproduces the measured binding energies. The calculated molecular wave functions show that in the experiment we can selectively excite stationary molecular states with an extraordinary degree of alignment or antialignment with respect to the magnetic field axis.