Rydberg atoms in parallel magnetic and electric fields. I. Experimental studies of the odd diamagnetic multiplet of lithium: n mixing and core effects
Rydberg atoms in parallel magnetic and electric fields. I. Experimental studies of the odd diamagnetic multiplet of lithium: n mixing and core effects
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DOI：
10.1088/0953-4075/21/21/008
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发表时间：
1988-11
期刊：
影响因子：
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通讯作者：
P. Cacciani;S. Liberman;E. Luc-Koenig;J. Pinard;C. Thomas
中科院分区：
文献类型：
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作者：
P. Cacciani;S. Liberman;E. Luc-Koenig;J. Pinard;C. Thomas
实验研究了一个完全的准氢反磁流形。光谱是在均匀磁场中通过使用偏振激光在一步过程中激发原子束中的锂原子而获得的。首次记录了M=0奇反磁性多重态的整体结构。这个实验证实了弱场极限下氢原子抗磁哈密顿量所预言的两类态的存在。抗磁性的基本特征在如此高的磁场强度下仍然存在，因此抗磁性相互作用不能被视为库仑问题的微扰。定量地评价了由于锂原子中的离子核的影响的流形间耦合。
A quasihydrogenic complete diamagnetic manifold is investigated experimentally. The spectra are obtained in a uniform magnetic field by exciting in a one-step process, using polarised laser light, the lithium atoms of an atomic beam. The whole structure of the M=0 odd diamagnetic multiplet has been recorded for the first time. This experiment provides a confirmation for the existence of the two classes of states predicted for the diamagnetic Hamiltonian of atomic hydrogen in the weak-field limit. The fundamental features of diamagnetism still subsist for such high field strengths so that the diamagnetic interaction cannot be regarded as a perturbation with respect to the Coulomb problem. The intermanifold coupling and the influence of effects due to the ionic core in the lithium atom are evaluated quantitatively.