NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Electron Heating and Quasiparticle Tunnelling in Superconducting Charge QubitsWe have directly measured non-equilibrium quasiparticle tunnelling in the time domain as a function of temperature and RF carrier power for a pair of charge qubits based on the single Cooper-pair box, where the readout is performed with a multiplexed quantum capacitance technique. We have extracted an effective electron temperature for each applied RF power, using the data taken at the lowest power as a reference curve. This data has been fit to a standard T? electron heating model, with a reasonable correspondence with established material parameters.
Document ID
20150008657
Document Type
Conference Paper
External Source(s)
Authors
Shaw, M. D. (University of Southern California Los Angeles, CA, United States)
Bueno, J. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Delsing, P. (Chalmers Univ. of Technology Goeteborg, Sweden)
Echternach, P. M. (University of Southern California Los Angeles, CA, United States)
Date Acquired
May 20, 2015
Publication Date
August 6, 2008
Subject Category
Solid-State Physics
Meeting Information
International Conference on Low Temperature Physics(Amsterdam)
Distribution Limits
Public
Copyright
Other
Keywords
Single Cooper Pair Box
quaiparticles