Generation of mechanical squeezing via magnetic dipoles on cantilevers

Details Generation of mechanical squeezing via magnetic dipoles on cantilevers Generation of mechanical squeezing via magnetic dipoles on cantilevers

2011-10-22

arxiv.org/abs/1110.4935v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 11 figures, submitted to PRA

Scientific paper

A scheme to squeeze the center-of-mass motional quadratures of a quantum mechanical oscillator below its standard quantum limit is proposed and analyzed theoretically. It relies on the dipole-dipole coupling between a magnetic dipole mounted on the tip of a cantilever to equally oriented dipoles located on a mesoscopic tuning fork. We also investigate the influence of several sources of noise on the achievable squeezing, including classical noise in the driving fork and the clamping noise in the oscillator. A detection of the state of the cantilever based on state transfer to a light field is considered. We investigate possible limitations of that scheme.

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