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Optomechanical damping as the origin of sideband asymmetry

João D. P. Machado, Yaroslav M. Blanter

SciPost Phys. Core 5, 034 (2022) · published 23 June 2022


Sideband asymmetry in cavity optomechanics has been explained by particle creation and annihilation processes, which bestow an amplitude proportional to 'n+1' and 'n' excitations to each of the respective sidebands. We discuss the issues with this as well as other interpretations, such as quantum backaction and noise interference, and show that the asymmetry is due to the optomechanical damping caused by the probe and the cooling lasers instead.

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