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Published on: August 5, 2013
Mechanically Mediated Microwave Frequency Conversion in the Quantum Regime
F Lecocq1, J B Clark1, R W Simmonds1
1National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USA.
Abstract:
We report the observation of efficient and low-noise frequency conversion between two microwave modes, mediated by the motion of a mechanical resonator subjected to radiation pressure. We achieve coherent conversion of more than 10^{12} photons/s with a 95% efficiency and a 14 kHz bandwidth. With less than 10^{-1} photons·s^{-1}·Hz^{-1} of added noise, this optomechanical frequency converter is suitable for quantum state transduction. We show the ability to operate this converter as a tunable beam splitter, with direct applications for photon routing and communication through complex quantum networks.
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