Tuesday, March 5, 2013

1303.0333 (Dezhi Xiong et al.)

Production of a rubidium Bose-Einstein condensate in a hybrid trap with
light induced atom desorption
   [PDF]

Dezhi Xiong, Fudong Wang, Xiaoke Li, Ting-Fai Lam, Dajun Wang
We report on the production of a rubidium Bose-Einstein condensate in a simplified vacuum apparatus. Magneto-optical traps with large numbers and ultra-high vacuum for moderately long conservative trap lifetimes of 16 seconds are sequentially obtained with light induced rapid atomic vapor pressure modulation. Subsequent evaporative cooling is carried out in two stages in a hybrid magnetic quadrupole plus optical dipole trap. High evaporation efficiencies are observed in both stages and $^{87}$Rb BECs with more than 10$^5$ atoms can be reliably produced with total evaporation time of only 9.5 seconds.
View original: http://arxiv.org/abs/1303.0333

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