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arXiv · 2003.04361

Stroboscopic quantum optomechanics

Matteo Brunelli·Daniel Malz·Albert Schliesser·Andreas Nunnenkamp
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Abstract

We consider an optomechanical cavity that is driven stroboscopically by a train of short pulses. By suitably choosing the inter-pulse spacing we show that ground-state cooling and mechanical squeezing can be achieved, even in the presence of mechanical dissipation and for moderate radiation-pressure interaction. We provide a full quantum-mechanical treatment of stroboscopic backaction-evading measurements, for which we give a simple analytic insight, and discuss preparation and verification of squeezed mechanical states. We further consider stroboscopic driving of a pair of non-interacting mechanical resonators coupled to a common cavity field, and show that they can be simultaneously cooled and entangled. Stroboscopic quantum optomechanics extends measurement-based quantum control of mechanical systems beyond the good-cavity limit.

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Matteo Brunelli, Daniel Malz, Albert Schliesser, Andreas Nunnenkamp. 2020-03-09. Stroboscopic quantum optomechanics. https://doi.org/10.1103/physrevresearch.2.023241

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