Narrow band microwave radiation from a biased single-Cooper-pair transistor
arXiv:cond-mat/0609491 · doi:10.1103/PhysRevLett.98.227001
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-electrometer integrated circuit. We identify emission lines due to Josephson radiation and radiative transport processes in the electrometer, and argue that a dissipative superconducting electrometer can severely disrupt the system it attempts to measure.
4 pages, 3 figures
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Cited by in corpus (6)
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- Using materials for quasiparticle engineering
- Enhanced current noise correlations in a Coulomb-Majorana device
- Recovery dynamics of a gap-engineered transmon after a quasiparticle burst
- Charge noise at Cooper-pair resonances