Laser cooling and control of excitations in superfluid helium

  title={Laser cooling and control of excitations in superfluid helium},
  author={G. Harris and D. McAuslan and E. Sheridan and Y. Sachkou and C. Baker and W. P. Bowen},
  journal={Nature Physics},
  • G. Harris, D. McAuslan, +3 authors W. P. Bowen
  • Published 2016
  • Physics
  • Nature Physics
  • It takes extreme sensitivity to measure the elementary excitations in liquid helium-4. An optomechanical cavity with a thin film of superfluid inside can be used to both observe and control phonons in real time. 
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