Nanomechanical squeezing with detection via a microwave cavity

M. J. Woolley, A. C. Doherty, G. J. Milburn, and K. C. Schwab
Phys. Rev. A 78, 062303 – Published 3 December 2008

Abstract

We study a parametrically driven nanomechanical resonator capacitively coupled to a microwave cavity. If the nanoresonator can be cooled to near its quantum ground state then quantum squeezing of a quadrature of the nanoresonator motion becomes feasible. We consider the adiabatic limit in which the cavity mode is slaved to the nanoresonator mode. By driving the cavity on its red-detuned sideband, the squeezing can be coupled into the microwave field at the cavity resonance. The red-detuned sideband drive is also compatible with the goal of ground state cooling. Squeezing of the output microwave field may be inferred using a technique similar to that used to infer squeezing of the field produced by a Josephson parametric amplifier, and subsequently, squeezing of the nanoresonator motion may be inferred. We have calculated the output field microwave squeezing spectra and related this to squeezing of the nanoresonator motion, both at zero and finite temperature. Driving the cavity on the blue-detuned sideband, and on both the blue and red sidebands, have also been considered within the same formalism.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 13 March 2008

DOI:https://doi.org/10.1103/PhysRevA.78.062303

©2008 American Physical Society

Authors & Affiliations

M. J. Woolley1, A. C. Doherty1, G. J. Milburn1, and K. C. Schwab2

  • 1Department of Physics, School of Physical Sciences, University of Queensland, St. Lucia, QLD 4072, Australia
  • 2Department of Physics, Cornell University, Ithaca, New York 14853, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 78, Iss. 6 — December 2008

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×