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

• URL: http://arxiv.org/abs/2006.14686v1
• Date: Thu, 25 Jun 2020 20:34:44 GMT
• Title: Quantum motion of a squeezed mechanical oscillator attained via a optomechanical experiment
• Authors: P. Vezio, A. Chowdhury, M. Bonaldi, A. Borrielli, F. Marino, B. Morana, G. A. Prodi, P.M. Sarro, E. Serra and F. Marin
• Abstract summary: We experimentally investigate a mechanical squeezed state realized in a parametrically-modulated membrane resonator embedded in an optical cavity. 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.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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