Theory of cavity-assisted microwave cooling of polar molecules
Theory of cavity-assisted microwave cooling of polar molecules
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极性分子腔辅助微波冷却理论
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
P. Zoller
中科院分区：
文献类型：
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作者：
M. Wallquist;P. Rabl;M. Lukin;P. Zoller
我们分析了腔辅助冷却方案的极性分子在微波域中，分子被激发的旋转过渡和能量耗散通过强相互作用与损耗带状线腔，最近提出的安德烈等人2006年自然物理。2 636。我们确定了主导的冷却和加热机制，在这种设置和研究冷却速率和最终温度在各种参数制度。特别是，我们分析了有限的环境温度对冷却效率的影响，并找到了最小的温度和最佳的冷却速率在强驱动制度。此外，我们讨论了腔体冷却效率和鲁棒性之间的权衡，在一个现实的实验设置中，如非谐性的捕获潜力无处不在的缺陷。
We analyze cavity-assisted cooling schemes for polar molecules in the microwave domain, where molecules are excited on a rotational transition and energy is dissipated via strong interactions with a lossy stripline cavity, as recently proposed by André et al 2006 Nat. Phys. 2 636. We identify the dominant cooling and heating mechanisms in this setup and study cooling rates and final temperatures in various parameter regimes. In particular, we analyze the effects of a finite environment temperature on the cooling efficiency, and find minimal temperature and optimized cooling rate in the strong drive regime. Further, we discuss the trade-off between efficiency of cavity cooling and robustness with respect to ubiquitous imperfections in a realistic experimental setup, such as anharmonicity of the trapping potential.