Probing Atom-Surface Interactions by Diffraction of Bose-Einstein Condensates
Probing Atom-Surface Interactions by Diffraction of Bose-Einstein Condensates
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DOI：
10.1103/physrevx.4.011029
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发表时间：
2014-02-27
影响因子：
12.5
通讯作者：
Marachevsky, Valery N.
中科院分区：
文献类型：
--
作者：
Bender, Helmar;Stehle, Christian;Marachevsky, Valery N.
在本文中，我们分析了原子与固体光栅的卡西米尔-波尔德相互作用以及在外部激光源存在的情况下原子与光栅之间的排斥相互作用。Casimir-Polder势的瑞利反射系数，并通过近似Hamaker方法进行评估。激光调谐的排斥相互作用的瑞利传输系数。固体光栅上方的组合势场通过玻色-爱因斯坦凝聚体的衍射进行局部探测。测得的衍射效率揭示了潜在的景观与理论的基础上瑞利分解的形状信息。
In this article, we analyze the Casimir-Polder interaction of atoms with a solid grating and the repulsive interaction between the atoms and the grating in the presence of an external laser source. The Casimir-Polder potential is evaluated exactly in terms of Rayleigh reflection coefficients and via an approximate Hamaker approach. The laser-tuned repulsive interaction is given in terms of Rayleigh transmission coefficients. The combined potential landscape above the solid grating is probed locally by diffraction of Bose-Einstein condensates. Measured diffraction efficiencies reveal information about the shape of the potential landscape in agreement with the theory based on Rayleigh decompositions.