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arXiv quant-ph/0411178quant-ph
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亚波长光纤双色倏逝场对铯原子的态不敏感俘获和导引

State-insensitive trapping and guiding of cesium atoms using a two-color evanescent field around a subwavelength-diameter fiber

Fam Le Kien, V. I. Balykin, K. Hakuta

摘要:

本文计算了铯原子在亚波长光纤中双色倏逝场中基态和激发态的光学势,即光位移。我们表明,$6S_{1/2}\leftrightarrow 6P_{3/2}$跃迁的光移可以通过将一个捕获光的波长调谐到934.5 nm左右(中心红失谐魔波长)和将另一个光的波长调谐到685.5 nm左右(中心蓝失谐魔波长)来最小化。同时使用红色和蓝色失谐魔波长允许状态不敏感的双色捕获和铯原子沿薄光纤的引导。我们的结果可以用来有效地加载双色偶极阱铯原子从磁光阱和执行连续观测。

英文摘要:

We calculate the optical potentials, i.e. the light shifts, of the ground and excited states of atomic cesium in a two-color evanescent field around a subwavelength-diameter fiber. We show that the light shifts of the $6S_{1/2}\leftrightarrow 6P_{3/2}$ transitions can be minimized by tuning one trapping light to around 934.5 nm in wavelength (central red-detuned magic wavelength) and the other light to around 685.5 nm in wavelength (central blue-detuned magic wavelength). The simultaneous use of the red- and blue-detuned magic wavelengths allows state-insensitive two-color trapping and guiding of cesium atoms along the thin fiber. Our results can be used to efficiently load a two-color dipole trap by cesium atoms from a magneto-optical trap and to perform continuous observations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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