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Journal of the Korean Physical Society

On trapping geometry for cold $$^{87}{\text {Rb}}$$ atoms in a radio-frequency dressed potential

Sourabh Sarkar, S. P. Ram, Kavish Bhardwaj, Gunjan Verma, Vibhuti Bhushan Tiwari, S. R. Mishra

Published Apr 3, 2026• 0 citations
Publisher
DOI
10.1007/s40042-026-01630-8

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On trapping geometry for cold 87Rb^{87}{\text {Rb}}87Rb atoms in a radio-frequency dressed potential
We have investigated the atom trapping geometry for trapping of 87Rb^{87}{Rb}87Rb atoms in a radio-frequency (rf) dressed potential generated after superposing a strong linearly polarized rf-field on a static magnetic trap. For this, laser cooled atoms in a magneto-optical trap (MOT) in an ultra-high vacuum (UHV) chamber (pressure ∼\sim∼ 1.5 ×\times× 10−1010^{-10}10−10 Torr) were trapped in a quadrupole magnetic trap and evaporatively cooled before transferring them to the rf-dressed potential. The experimentally observed hollow shell type atom trapping geometry has been explained by theoretical modelling of the trapping potential.