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Nanomechanical squeezing with detection via a microwave cavity

Woolley, M. J. and Doherty, A. C. and Milburn, G. J. and Schwab, K. C. (2008) Nanomechanical squeezing with detection via a microwave cavity. Physical Review A, 78 (6). Art. No. 062303. ISSN 1050-2947. doi:10.1103/PhysRevA.78.062303.

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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.

Item Type:Article
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Schwab, K. C.0000-0001-8216-4815
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.
Funding AgencyGrant Number
Australian Research CouncilUNSPECIFIED
Subject Keywords:cavity resonators; laser cooling; micromechanical resonators; microwave photonics; optical parametric amplifiers; optical squeezing; superconducting microwave devices
Issue or Number:6
Classification Code:# 42.50.Lc Quantum fluctuations, quantum noise, and quantum jumps (quantum optics) # 85.85.+j Micro- and nano-electromechanical systems (MEMS/NEMS) and devices
Record Number:CaltechAUTHORS:20090911-092250976
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Official Citation: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 (2008), DOI:10.1103/PhysRevA.78.062303
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:15758
Deposited By: George Porter
Deposited On:22 Sep 2009 17:32
Last Modified:08 Nov 2021 23:22

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