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Two-dimensional Bose-Einstein condensate in an optical surface trap | D Rychtarik
; B Engeser
; H-C Nägerl
; R Grimm
; | Date: |
30 Apr 2004 | Journal: | Phys Rev Lett, 92 (17), 173003 | Abstract: | We report on the creation of a two-dimensional Bose-Einstein condensate of cesium atoms in a gravito-optical surface trap. The condensate is produced a few microm above a dielectric surface on an evanescent-wave atom mirror. After evaporative cooling by all-optical means, expansion measurements for the tightly confined vertical motion show energies well below the vibrational energy quantum. The presence of a condensate is observed in two independent ways by a magnetically induced collapse at negative scattering length and by measurements of the horizontal expansion. | Source: | PubMed, pmid15169144 | Services: | Forum | Review | Favorites |
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