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Phys Rev Lett. 2012 Nov 30;109(22):223601. Epub 2012 Nov 27.

Strong coupling and long-range collective interactions in optomechanical arrays.

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1
Centre for Theoretical Atomic, Molecular and Optical Physics, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, United Kingdom. andre.xuereb@qub.ac.uk

Abstract

We investigate the collective optomechanics of an ensemble of scatterers inside a Fabry-PĂ©rot resonator and identify an optimized configuration where the ensemble is transmissive, in contrast to the usual reflective optomechanics approach. In this configuration, the optomechanical coupling of a specific collective mechanical mode can be several orders of magnitude larger than the single-element case, and long-range interactions can be generated between the different elements since light permeates throughout the array. This new regime should realistically allow for achieving strong single-photon optomechanical coupling with massive resonators, realizing hybrid quantum interfaces, and exploiting collective long-range interactions in arrays of atoms or mechanical oscillators.

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