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arXiv · 1510.00508

Probing the state of a mechanical oscillator with an ultra-strongly coupled quantum emitter

Cyril Elouard·Benjamin Besga·Alexia Auffèves
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Abstract

We study the dynamics of a mechanical resonator parametrically coupled to a driven dissipative quantum emitter in the ultra-strong coupling regime. We show that this regime is fully compatible with a semi-classical treatment, and we derive master equations for the emitter and the resonator. We show that the fluctuations of the driven emitter's population induce the non-symmetrical scattering of the mechanical quadratures. At long timescales, such scattering back-acts on the emitter, which eventually decouples from the driving light. This optical noise at the quantum limit is observable with state of the art hybrid devices.

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Cyril Elouard, Benjamin Besga, Alexia Auffèves. 2018-07-19. Probing the state of a mechanical oscillator with an ultra-strongly coupled quantum emitter. https://doi.org/10.1103/physrevlett.122.013602

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