Observation of strong radiation pressure forces from squeezed light on a mechanical oscillator

Published

July 1, 2016

Author(s)

Jeremy B. Clark, Florent Q. Lecocq, Raymond W. Simmonds, Jose A. Aumentado, John D. Teufel

Abstract

Quantum-enhanced sensing is a powerful technique in which nonclassical states are used to optimize the sensitivity of a measurement. Although squeezed light in particular has proven to be an attractive resource for enhancing mechanical displacement sensing, the fundamental limits of the enhancement have not yet been encountered. Here we use a microwave cavity optomechanical system to observe the squeezing-dependent radiation pressure noise that necessarily accompanies any improvement in the measurement’s precision and ultimately limits the measurement’s noise performance. We also exploit this radiation pressure force to realize a quantum nondemolition (QND) measurement of the light, enhancing our detection of the squeezing. Our results fully illustrate how squeezed light interacts with mechanical oscillators, which will be relevant for the next generation of advanced gravitational wave observatories.

Citation

Nature Physics

Volume

12

Issue

7

Pub Type

Journals

Download Paper

https://doi.org/10.1038/NPHYS3701

Keywords

optomechanics, squeezing, quantum nondemolition

Nanomechanics and Quantum information science

Citation

Clark, J. , Lecocq, F. , Simmonds, R. , Aumentado, J. and Teufel, J. (2016), Observation of strong radiation pressure forces from squeezed light on a mechanical oscillator, Nature Physics, [online], https://doi.org/10.1038/NPHYS3701 (Accessed November 29, 2021)