Microsecond resolution of quasiparticle tunneling in the single-Cooper-pair-transistor

Abstract

We present radio-frequency measurements on a single-Cooper-pair-transistor in which individual quasiparticle poisoning events were observed with microsecond temporal resolution. Thermal activation of the quasiparticle dynamics is investigated, and consequently, we are able to determine energetics of the poisoning and un-poisoning processes. In particular, we are able to assign an effective quasiparticle temperature to parameterize the poisoning rate.

4 pages, 4 figs

References in corpus (4)

• Quasiparticle decay rate of Josephson charge qubit oscillations
• Time-domain measurements of quasiparticle tunneling rates in a single-Cooper-pair transistor
• Kinetics of the superconducting charge qubit in the presence of a quasiparticle
• Spin-Dependent Quasiparticle Transport in Aluminum Single Electron Transistors

Cited by in corpus (9)

• Kinetics of non-equilibrium quasiparticle tunneling in superconducting charge qubits
• Energy gap measurement of nanostructured thin aluminium films for use in single Cooper-pair devices
• A quantitative study of quasiparticle traps using the single-Cooper-pair-transistor
• Kinetics of quasiparticle trapping in a Cooper-pair box
• Current to frequency conversion in a Josephson circuit
• Quasiparticle poisoning and Josephson current fluctuations induced by Kondo impurities
• Effect of quantum fluctuations on even-odd energy difference in a Cooper-pair box
• Parity effect in Al and Nb single electron transistors in a tunable environment
• Energy relaxation of superconducting charge qubit via Andreev processes