存水弯(水管)
磁光阱
各向异性
相(物质)
材料科学
凝聚态物理
原子物理学
空格(标点符号)
物理
光学
量子力学
激光器
语言学
哲学
气象学
作者
Mukund Vengalattore,R. S. Conroy,Mara Prentiss
标识
DOI:10.1103/physrevlett.92.183001
摘要
The phase space density of dense, cylindrical clouds of atoms in a 2D magneto-optic trap is investigated. For a large number of trapped atoms ($>{10}^{8}$), the density of a spherical cloud is limited by photon reabsorption. However, as the atom cloud is deformed to reduce the radial optical density, the temperature of the atoms decreases due to the suppression of multiple scattering leading to an increase in the phase space density. A density of $2\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$ has been achieved in a magneto-optic trap containing $2\ifmmode\times\else\texttimes\fi{}{10}^{8}$ atoms.
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