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Narrow band microwave radiation from a biased single-Cooper-pair transistor

Published

Author(s)

Ofer Naaman, Joe Aumentado

Abstract

We show that a single-Cooper-pair transistor (SCPT) electrometer emits narrow-band microwave radiation when biased in its sub-gap region. Photo-activation of quasiparticle tunneling in a nearby SCPT is used to spectroscopically detect this radiation, in a configuration that closely mimics a qubit\textendash electrometer integrated circuit. We identify emission lines due to Josephson radiation and radiative transport processes in the electrometer, and show that dissipative electrometry can severely disrupt the system it attempts to measure.
Citation
Physical Review Letters
Volume
98

Keywords

Josephson effect, quasiparticles, single Cooper pair transistor, tunneling

Citation

Naaman, O. and Aumentado, J. (2007), Narrow band microwave radiation from a biased single-Cooper-pair transistor, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32460 (Accessed May 20, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created May 28, 2007, Updated October 12, 2021