Session Y34: Superconducting Devices and Applications
8:00 AM–11:00 AM, Friday, March 20, 2009
Room: 404
Sponsoring Unit:
DCMP
Chair: Galen O'Neil and Robert Horansky, National Institute of Standards and Technology
Abstract ID: BAPS.2009.MAR.Y34.3
Abstract: Y34.00003 : Nanomechanical parametric amplification and oscillation via electrostatic coupling to Cooper-pair box
8:24 AM–8:36 AM
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Abstract 
Authors:
Junho Suh
(Caltech)
Matt LaHaye
(Caltech)
Pierre Echternach
(Jet Propulsion Laboratory)
Keith Schwab
(Cornell University)
Michael Roukes
(Caltech)
Nanomechanical resonator coupled to a Cooper-pair box exhibits frequency modulation as a function of the gate voltage when the qubit is adiabatically tuned. We utilize this effect to demonstrate mechanical degenerate parametric amplification and oscillation. Gain above 30dB and self-oscillation is observed. This technique would provide an efficient way to enhance the force sensitivity in the measurement of coupled dynamics of nanomechanical resonanator modes and a solid state qubit.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2009.MAR.Y34.3