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arXiv quant-ph/0703157quant-phphysics.atom-ph
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分子内部运动的空腔冷却

Cavity cooling of internal molecular motion

Giovanna Morigi, Pepijn W. H. Pinkse, Markus Kowalewski, Regina de Vivie-Riedle

摘要:

我们预言,通过将分子偶极跃迁耦合到光腔中,可以冷却分子的转动、振动和平移自由度。使用OH分子的一组现实的实验参数的动力学进行了数值模拟。结果表明,在几秒钟内,平移运动被冷却到几个$μ$ K,内部态在两个解耦的转动梯的两个基态中的一个中准备好.对于具有较大极化率的分子,预期较短的冷却时间。

英文摘要:

We predict that it is possible to cool rotational, vibrational and translational degrees of freedom of molecules by coupling a molecular dipole transition to an optical cavity. The dynamics is numerically simulated for a realistic set of experimental parameters using OH molecules. The results show that the translational motion is cooled to few $μ$K and the internal state is prepared in one of the two ground states of the two decoupled rotational ladders in few seconds. Shorter cooling times are expected for molecules with larger polarizability.

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