Cavity Cooling of Many Atoms.

  title={Cavity Cooling of Many Atoms.},
  author={Mahdi Hosseini and Yiheng Duan and Kristin M. Beck and Yu-Ting Chen and Vladan Vuleti{\'c}},
  journal={Physical review letters},
  volume={118 18},
We demonstrate cavity cooling of all motional degrees of freedom of an atomic ensemble using light that is far detuned from the atomic transitions by several gigahertz. The cooling is achieved by cavity-induced frequency-dependent asymmetric enhancement of the atomic emission spectrum, thereby extracting thermal kinetic energy from the atomic system. Within 100 ms, the atomic temperature is reduced from 200 to 10  μK, where the final temperature is mainly limited by the linewidth of the cavity… 

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