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arXiv · 2404.08391

On trapping geometry for cold atoms in a radio-frequency (rf) dressed potential

Sourabh Sarkar·S. P. Ram·Kavish Bhardwaj·Gunjan Verma·V. B. Tiwari·S. R. Mishra
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Abstract

We have investigated the atom trapping geometry for trapping of $^{87}{Rb}$ 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 $\times$ $10^{-10}$ 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.

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Sourabh Sarkar, S. P. Ram, Kavish Bhardwaj, Gunjan Verma, V. B. Tiwari, S. R. Mishra. 2024-04-12. On trapping geometry for cold atoms in a radio-frequency (rf) dressed potential. https://arxiv.org/abs/2404.08391

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