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arXiv quant-ph/0412044quant-ph
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超冷原子通过微脉塞的传输:失谐效应

Transmission of ultracold atoms through a micromaser: detuning effects

John Martin, Thierry Bastin

摘要:

在腔模与原子跃迁频率失谐的一般情况下,研究了超冷原子通过微脉塞的传输几率。我们概括了以前的结果建立在共振的情况下(零失谐)的台面模式功能。特别是,它表明,冷原子通过微脉塞的速度选择可以很容易地调谐和增强使用非共振场内的腔。此外,传输概率相对于失谐表现出非常尖锐的谐振,其可以限定用于高精度计量目的的单腔器件(原子钟)。

英文摘要:

The transmission probability of ultracold atoms through a micromaser is studied in the general case where a detuning between the cavity mode and the atomic transition frequencies is present. We generalize previous results established in the resonant case (zero detuning) for the mesa mode function. In particular, it is shown that the velocity selection of cold atoms passing through the micromaser can be very easily tuned and enhanced using a non-resonant field inside the cavity. Also, the transmission probability exhibits with respect to the detuning very sharp resonances that could define single cavity devices for high accuracy metrology purposes (atomic clocks).

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