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Phonon Cooling by an Optomechanical Heat Pump
Ying Dong1,2, F Bariani2, P Meystre2
1Department of Physics, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China.
Abstract:
We propose and analyze theoretically a cavity optomechanical analog of a heat pump that uses a polariton fluid to cool mechanical modes coupled to a single precooled phonon mode via external modulation of the substrate of the mechanical resonator. This approach permits us to cool phonon modes of arbitrary frequencies not limited by the cavity-optical field detuning deep into the quantum regime from room temperature.
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