Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2005-09-30
Phys. Rev. A 72, 053627 (2005).
Physics
Condensed Matter
Other Condensed Matter
RevTex4, 6 pages, 4 eps figures, to appear in Phys. Rev. A
Scientific paper
10.1103/PhysRevA.72.053627
We investigate the temperature-dependent effective size of a trapped interacting atomic Bose gas within a mean field theory approximation. The sudden shrinking of the average length, as observed in an earlier experiment by Wang {\it et al.} [Chin. Phys. Lett. {\bf 20}, 799 (2003)], is shown to be a good indication for Bose-Einstein condensation (BEC). Our study also supports the use of the average width of a trapped Bose gas for a nondestructive calibration of its temperature.
Xu Zhiyong
You Liangzhi
Zhang Wenxian
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