Quantum motion of a squeezed mechanical oscillator attained via a optomechanical experiment

Abstract

We experimentally investigate a mechanical squeezed state realized in a parametrically-modulated membrane resonator embedded in an optical cavity. We demonstrate that a quantum characteristic of the squeezed dynamics can be revealed and quantified even in a moderately warm oscillator, through the analysis of motional sidebands. We provide a theoretical framework for quantitatively interpreting the observations and present an extended comparison with the experiment. A notable result is that the spectral shape of each motional sideband provides a clear signature of a quantum mechanical squeezed state without the necessity of absolute calibrations, in particular in the regime where residual fluctuations in the squeezed quadrature are reduced below the zero-point level.

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Cited by in corpus (5)

• Mechanical squeezing via unstable dynamics in a microcavity
• Quantum squeezing induced quantum entanglement and EPR steering in coupled optomechanical system
• Silicon-nitride nanosensors toward room temperature quantum optomechanics
• Spectral Analysis of Quantum Field Fluctuations in a Strongly Coupled Optomechanical System
• Active feedback cooling of a SiN membrane resonator by electrostatic actuation