Dependence of in-situ Bose condensate size on frequency of RF-field used for evaporative cooling

2016/09/03 by S. R. Mishra, Mishra, S. R., S. P. Ram +6
Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic Physics (physics.atom-ph) #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum, superfluid, helium dynamics #physics.atom-ph

paper · pdf · doi:10.48550/arxiv.1609.00800

10 pages, 12 figures

arxiv created 2016/09/03 · openalex publication_date 2016/09/03 · arxiv updated 2016/09/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report the results of in-situ characterization of ⁸⁷Rb atom cloud in a quadrupole Ioffe configuration (QUIC) magnetic trap after radio frequency (RF) evaporative cooling of the trapped atom cloud. The in-situ absorption images of the atom cloud have shown clear bimodal optical density (OD) profiles which indicate the Bose-Einstein condensation (BEC) phase transition in the trapped gas. Also, we report the measured variation in the sizes of the condensate and thermal clouds with the final frequency in the frequency scan of the RF-field applied for evaporative cooling. The results are consistent with the theoretical understanding and predictions reported earlier.

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