Quantum Signature of a Squeezed Mechanical Oscillator

Journal article (2020)

Authors

A. Chowdhury CNR-INO
P. Vezio European Laboratory for Non-linear Spectroscopy (LENS)
M. Bonaldi Trento Institute for Fundamental Physics and Applications (INFN-TIFPA), Fondazione Bruno Kessler
A. Borrielli Trento Institute for Fundamental Physics and Applications (INFN-TIFPA), Fondazione Bruno Kessler
F. Marino Sezione di Firenze, CNR-INO
B. Morana Fondazione Bruno Kessler, Electronic Components, Technology and Materials - EEMCS
Giovanni Andrea Prodi Trento Institute for Fundamental Physics and Applications (INFN-TIFPA), Università di Trento
Pasqualina M Sarro Electronic Components, Technology and Materials - EEMCS
Pasqualina M. Sarro Electronic Components, Technology and Materials - EEMCS
E. Serra Trento Institute for Fundamental Physics and Applications (INFN-TIFPA), Electronic Components, Technology and Materials - EEMCS
F. Marin CNR-INO, European Laboratory for Non-linear Spectroscopy (LENS), INFN, University of Florence
Research Group
Electronic Components, Technology and Materials (EEMCS) (TU Delft)
Copyright: © 2020 A. Chowdhury, P. Vezio, M. Bonaldi, A. Borrielli, F. Marino, B. Morana, G. A. Prodi, Pasqualina M Sarro, E. Serra, F. Marin
DOI: https://doi.org/10.1103/PhysRevLett.124.023601
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Published Date

13-01-2020

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electronic Components, Technology and Materials

Abstract

Recent optomechanical experiments have observed nonclassical properties in macroscopic mechanical oscillators. A key indicator of such properties is the asymmetry in the strength of the motional sidebands produced in the probe electromagnetic field, which is originated by the noncommutativity between the oscillator ladder operators. Here we extend the analysis to a squeezed state of an oscillator embedded in an optical cavity, produced by the parametric effect originated by a suitable combination of optical fields. The motional sidebands assume a peculiar shape, related to the modified system dynamics, with asymmetric features revealing and quantifying the quantum component of the squeezed oscillator motion.

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