Document Detail


Parametric amplification and back-action noise squeezing by a qubit-coupled nanoresonator.
MedLine Citation:
PMID:  20843059     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Junho Suh; Matthew D LaHaye; Pierre M Echternach; Keith C Schwab; Michael L Roukes
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Nano letters     Volume:  10     ISSN:  1530-6992     ISO Abbreviation:  Nano Lett.     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-10-14     Completed Date:  2011-02-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088070     Medline TA:  Nano Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3990-4     Citation Subset:  -    
Affiliation:
Condensed Matter Physics, California Institute of Technology, MC 114-36, Pasadena, California 91125, USA.
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