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ISSN: 1023-5086


ISSN: 1023-5086

Scientific and technical

Opticheskii Zhurnal

A full-text English translation of the journal is published by Optica Publishing Group under the title “Journal of Optical Technology”

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DOI: 10.17586/1023-5086-2024-91-05-16-24

УДК: 621.317.44, 539.143.43; 539.143.42

Magnetic resonance frequency shifts in quantum magnetometers based on the phenomenon of optical orientation of atoms

For Russian citation (Opticheskii Zhurnal):

 Картошкин В.А. Сдвиги частоты магнитного резонанса в квантовых магнитометрах на основе явления оптической ориентации атомов // Оптический журнал. 2024. Т. 91. № 5. С. 16–24.


 Kartoshkin V.A. Magnetic resonance frequency shifts in quantum magnetometers based on the phenomenon of optical orientation of atoms [in Russian] // Opticheskii Zhurnal. Opticheskii Zhurnal. 2024. V. 91. № 5. P. 16–24.

For citation (Journal of Optical Technology):
Subject of study. Magnetic resonance frequency shifts caused by spin exchange collisions involving optically oriented alkali atoms in the ground state. Aim of study. Theoretical study of spin exchange collisions involving optically oriented alkali atoms of different types to determine the temperature dependences of shifts for various pairs of alkali atoms under optical orientation conditions in order to establish optimal conditions for the construction of quantum magnetometers with optical pumping using mixtures of alkali atoms. Method. In this work, within the framework of the quantum theory of scattering, collisions between optically oriented alkali atoms are considered and, based on data on interaction potentials describing dimers of alkali atoms, the phases of scattering at these potentials and the imaginary parts of the complex cross section of spin exchange are calculated. The obtained energy dependences of the cross sections were used to construct the temperature dependences of the magnetic resonance frequency shifts. Main results. The temperature dependences of the magnetic resonance line frequency shifts were obtained for the following pairs of alkali atoms 39K – 133Cs, 39K – 85Rb and 133Cs – 85Rb. It has been established that in the case of a pair of alkali atoms 39K – 85Rb in the temperature region 480 K, the shift of the magnetic resonance line passes through zero for the hyperfine state F = 1. This indicates the absence of a negative influence of spin exchange on the position of the magnetic resonance line. Practical significance. The results obtained in the work can be used to create quantum electronics devices that operate on the principles of optical orientation of atoms and do not have spin exchange shifts. In particular, at the creating co-magnetometers with optical orientation of alkali atoms.

optical orientation of atoms, spin exchange, magnetic resonance frequency shifts

OCIS codes: 020.0020, 020.3690, 290.5850


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