基态锂原子的碰撞。复合自旋交换截面

IF 0.8 4区物理与天体物理 Q4 OPTICS

Optics and Spectroscopy Pub Date : 2021-12-30 DOI:10.1134/S0030400X21050076

V. A. Kartoshkin

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引用次数: 0

摘要

分析了两个极化锂原子(7Li)的相互作用。当这些原子相互碰撞时，除了弹性散射外，还会发生自旋交换，即碰撞原子之间的电子极化交换。在极化转移的同时，自旋交换导致碰撞原子的磁共振频移。根据描述两个锂原子相互作用的电势数据，首次计算了自旋交换截面和共振频移截面的能量依赖性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Collisions of Lithium Atoms in Ground State. Complex Spin-Exchange Cross Sections

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Collisions of Lithium Atoms in Ground State. Complex Spin-Exchange Cross Sections

Interaction of two polarized lithium atoms (⁷Li) is analyzed. When such atoms collide with each other, spin exchange, i.e., an exchange of electron polarization between colliding atoms, takes place in addition to elastic scattering. Simultaneously with polarization transfer, spin exchange leads to frequency shift of the magnetic resonance of colliding atoms. Based on the data on potentials describing interaction between two lithium atoms, energy dependences of spin-exchange cross section and cross section of frequency shift of magnetic resonance are calculated for the first time.

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来源期刊

Optics and Spectroscopy 物理-光谱学

CiteScore

1.60

自引率

0.00%

发文量

审稿时长

4.5 months

期刊介绍： Optics and Spectroscopy (Optika i spektroskopiya), founded in 1956, presents original and review papers in various fields of modern optics and spectroscopy in the entire wavelength range from radio waves to X-rays. Topics covered include problems of theoretical and experimental spectroscopy of atoms, molecules, and condensed state, lasers and the interaction of laser radiation with matter, physical and geometrical optics, holography, and physical principles of optical instrument making.