3 years ago

Recurrence of optical squeezing: witness of nonclassicality in optomechanics.

Yue Ma, Federico Armata, Kiran E. Khosla, M. S. Kim

Witnessing nonclassicalities in the mechanical motion of mesoscopic objects is one of the important goals in optomechanics. Here, the dynamics of micro-mechanical elements can be read out by high precision measurements on the optical field. In this context, we study how nonclassicality of a mechanical movable mirror can be revealed by measuring the optical field variance alone. By developing classical and semiclassical descriptions of the system, without requiring quantization of the mirror, we recover either squeezing of the optical field or revivals in the field variance. We identify the recurrence of squeezing in the optical field as a genuine witness of nonclassicality of mechanical motion.

Publisher URL: http://arxiv.org/abs/1811.04025

DOI: arXiv:1811.04025v1

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