Nonadditivity of Optical and Casimir-Polder Potentials.

Nonadditivity of Optical and Casimir-Polder Potentials.
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光学势和 Casimir-Polder 势的非可加性

DOI:
10.1103/physrevlett.121.083603
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发表时间:
2018
影响因子:
8.6
通讯作者:
S. Y. Buhmann
S. Y. Buhmann
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
S. Fuchs;R. Bennett;R. V. Krems;S. Y. Buhmann

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在非共振激光场的照射下,原子表面的光学势和表面的Casimir-Polder势是两个基本势的总和。在这里,我们报道了一种新的非可加势,即激光诱导的Casimir-Polder势,它产生于原子与激光和量子真空的关联耦合。我们将这一结果应用于一个实验上可以实现的场景,即原子镜的表面漏出了一束逝去的激光。我们证明了非加性项对于实际的实验参数是重要的,它将势垒转化为势垒,可以用来捕获表面附近的原子。
An atom irradiated by an off-resonant laser field near a surface is expected to experience the sum of two fundamental potentials, the optical potential of the laser field and the Casimir-Polder potential of the surface. Here, we report a new nonadditive potential, namely, the laser-induced Casimir-Polder potential, which arises from a correlated coupling of the atom with both the laser and the quantum vacuum. We apply this result to an experimentally realizable scenario of an atomic mirror with an evanescent laser beam leaking out of a surface. We show that the nonadditive term is significant for realistic experimental parameters, transforming potential barriers into potential wells, which can be used to trap atoms near surfaces.
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DOI: --
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