Optics and Spectroscopy

Collisions with Participation of Polarized Cesium and Lithium Alkali Atoms

Victor A. Kartoshkin

Published Apr 1, 2020• 0 citations

Abstract

Abstract The spin-exchange cross sections and the magnetic resonance frequency shift in collision of lithium and cesium atoms in the ground state are calculated. The calculations are performed based on the data on the singlet ($$X{}^{1}{{\Sigma }^{ + }}$$) and triplet ($$a{}^{3}{{\Sigma }^{ + }}$$) interaction potentials of 7Li 133Cs dimer. The passage from the energy dependences of the real and imaginary parts of the complex spin-exchange cross section to the temperature dependences makes it possible to obtain information on both the broadening and the frequency shift of the magnetic resonance line in collisions of the atoms under study.

DOI: 10.1134/s0030400x20040104

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Optics and Spectroscopy

Collisions with Participation of Polarized Cesium and Lithium Alkali Atoms

Victor A. Kartoshkin

Published Apr 1, 2020• 0 citations

Publisher

Abstract

X{}^{1}{{\Sigma }^{ + }}

) and triplet (

a{}^{3}{{\Sigma }^{ + }}

) interaction potentials of 7Li 133Cs dimer. The passage from the energy dependences of the real and imaginary parts of the complex spin-exchange cross section to the temperature dependences makes it possible to obtain information on both the broadening and the frequency shift of the magnetic resonance line in collisions of the atoms under study.

DOI: 10.1134/s0030400x20040104

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X{}^{1}{{\Sigma }^{ + }}

) and triplet (

a{}^{3}{{\Sigma }^{ + }}

X{}^{1}{{\Sigma }^{ + }}

) and triplet (

a{}^{3}{{\Sigma }^{ + }}

) interaction potentials of 39K7Li dimer. A passage from the energy dependences to the temperature ones of the real and imaginary parts of the complex spin-exchange cross section yields information about both the broadening of the magnetic resonance line of the atoms under study and the magnetic-resonance frequency shift in their collision.

X{}^{1}{{\Sigma }^{ + }}

) and triplet (

a{}^{3}{{\Sigma }^{ + }}

) interaction potentials of ^39K^7Li dimer. A passage from the energy dependences to the temperature ones of the real and imaginary parts of the complex spin-exchange cross section yields information about both the broadening of the magnetic resonance line of the atoms under study and the magnetic-resonance frequency shift in their collision.

q = \bar q + i\overline{\overline q}

for the system under investigation are calculated. Obtained dependences of the real and imaginary parts of the spin-exchange cross section on temperature allow one to obtain information both on the broadening of a magnetic resonance line of K atoms and on the frequency shift of the magnetic resonance during collision.