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Parametric Amplification and Back-Action Noise Squeezing by a Qubit-Coupled Nanoresonator

Suh, Junho and LaHaye, Matthew D. and Echternach, Pierre M. and Schwab, Keith C. and Roukes, Michael L. (2010) Parametric Amplification and Back-Action Noise Squeezing by a Qubit-Coupled Nanoresonator. Nano Letters, 10 (10). pp. 3990-3994. ISSN 1530-6984. doi:10.1021/nl101844r.

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We demonstrate the parametric amplification and noise squeezing of nanomechanical motion utilizing dispersive coupling to a Cooper-pair box qubit. By modulating the qubit bias and resulting mechanical resonance shift, we achieve gain of 30 dB and noise squeezing of 4 dB. This qubit-mediated effect is 3000 times more effective than that resulting from the weak nonlinearity of capacitance to a nearby electrode. This technique may be used to prepare nanomechanical squeezed states.

Item Type:Article
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URLURL TypeDescription
Suh, Junho0000-0002-0112-0499
Schwab, Keith C.0000-0001-8216-4815
Roukes, Michael L.0000-0002-2916-6026
Additional Information:© 2010 American Chemical Society. Received for review: 05/25/2010. Published on Web: 09/15/2010. The authors thank to M. Cross, R. Lifshitz and R. Karabalin for discussions and R. E. Muller for electron beam lithography. This research was partially carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.
Funding AgencyGrant Number
Subject Keywords:NEMS; Cooper-pair-box qubit; dispersive coupling; parametric amplification; noise squeezing; squeezed state
Issue or Number:10
Record Number:CaltechAUTHORS:20101102-084452139
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Official Citation:Parametric Amplification and Back-Action Noise Squeezing by a Qubit-Coupled Nanoresonator Junho Suh, Matthew D. LaHaye, Pierre M. Echternach, Keith C. Schwab, Michael L. Roukes Nano Letters 2010 10 (10), 3990-3994
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:20630
Deposited By: Ruth Sustaita
Deposited On:02 Nov 2010 16:10
Last Modified:09 Nov 2021 00:01

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