Rabi Frequency Management of Collapsing Quasi-Two-Dimensional Bose-Einstein Condensates with Pseudospin-1/2

The collapse of quasi-two-dimensional pseudospin-1/2 Bose-Einstein condensate of attracting atoms with intra- and cross-spin interaction is studied in the presence of the Rabi coupling. The condensate dynamics is presented as a function of the self-interaction and Rabi frequency. The evolution of tw...

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Bibliographic Details
Published inParticles Vol. 5; no. 2; pp. 135 - 145
Main Authors Mardonov, Shukhrat N., Ahmedov, Bobomurat J.
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.04.2022
Subjects
Atomic properties
Bose-Einstein condensate
Bose-Einstein condensates
Bose-Einstein condensation
collapse
Coupling
Gross-Pitaevskii equation
Magnetic fields
Physics
pseudospin
Rabi frequency
Spin coupling
synthetic magnetic field
Wave functions
Uzbekistan
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Summary:The collapse of quasi-two-dimensional pseudospin-1/2 Bose-Einstein condensate of attracting atoms with intra- and cross-spin interaction is studied in the presence of the Rabi coupling. The condensate dynamics is presented as a function of the self-interaction and Rabi frequency. The evolution of two components of the condensate by using the Gross-Pitaevskii equations is investigated. The initial Gaussian ansatz for two-component wave functions is selected for the better interpretation of the numerical results. The intra-spin-coupling modifies the critical number of atoms causing the collapse while the collapse is observed only in a single pseudospin component. It is demonstrated that for cross-spin-coupling only double spin-components collapse can occur.
ISSN:2571-712X
2571-712X
DOI:10.3390/particles5020012