Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published December 2008 | Published
Journal Article Open

Nanomechanical squeezing with detection via a microwave cavity


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.

Additional Information

©2008 The American Physical Society. Received 13 March 2008; published 3 December 2008. We acknowledge support from the Australian Research Council. M.J.W. thanks Christian Weedbrook for useful discussions.

Attached Files

Published - WoolleyPhysRevA_78_062303.pdf


Files (465.3 kB)
Name Size Download all
465.3 kB Preview Download

Additional details

August 22, 2023
October 19, 2023