Strong coupling and active cooling in a finite-temperature hybrid atom-cavity system

  title={Strong coupling and active cooling in a finite-temperature hybrid atom-cavity system},
  author={Lindsey Keary and Jonathan D. Pritchard},
  journal={Physical Review A},
For a standard two-level atom coupled to the quantized field of a resonant cavity, finite temperature effects lead to thermal occupation of the cavity modes that obfuscates measurement of the quantum nature of the atom-light interaction. In this paper we demonstrate that using a hybrid system of a superconducting cavity coupled to a multi-level Rydberg atom it is possible to observe the quantum nature of strong coupling even at finite temperatures, and to exploit this coupling to permit cooling of… 

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