Abstract

Cavity optomechanical systems can explore the limits of quantum measurements and enact quantum control over mechanical motion. The optical cavity in these systems enhance the interaction strength between light and mechanical motion, thereby enabling access to the quantum backaction-dominated regime, where the quantum backaction of light is greater than the thermal force noise from the finite temperature environment. While optical cavities greatly enhance interaction strengths, they incur added experimental complexity and impose bandwidth restrictions that limit pulsed measurements. Over the last decade, engineered nanomechanical resonators have reached extremely low thermal decoherence rates by exploiting dissipation dilution. Dissipation diluted resonators exhibit greatly reduced mechanical dissipation due to the combination of stress and geometric nonlinearity, where the elongation of the mechanical resonator is nonlinear in the mode amplitude[1].

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