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