Waiting time distributions in a two-level fluctuator coupled to a superconducting charge detector

Jenei, Máté and Potanina, Elina and Zhao, Ruichen and Tan, Kuan Y. and Rossi, Alessandro and Tanttu, Tuomo and Chan, Kok W. and Sevriuk, Vasilii and Möttönen, Mikko and Dzurak, Andrew (2019) Waiting time distributions in a two-level fluctuator coupled to a superconducting charge detector. Physical Review Research, 1 (3). 033163. ISSN 2643-1564 (https://doi.org/10.1103/PhysRevResearch.1.033163)

[thumbnail of Jenei-etal-PRR-2019-Waiting-time-distributions-in-a-two-level-fluctuator-coupled-to-a-superconducting-charge-detector]
Preview
 Text. Filename: Jenei_etal_PRR_2019_Waiting_time_distributions_in_a_two_level_fluctuator_coupled_to_a_superconducting_charge_detector.pdf
Final Published Version
License: Creative Commons Attribution 4.0 logo
Download (620kB)| Preview

Abstract

We analyze charge fluctuations in a parasitic state strongly coupled to a superconducting Josephson-junction-based charge detector. The charge dynamics of the state resembles that of electron transport in a quantum dot with two charge states, and hence we refer to it as a two-level fluctuator. By constructing the distribution of waiting times from the measured detector signal and comparing it with a waiting time theory, we extract the electron in- and out-tunneling rates for the two-level fluctuator, which are severely asymmetric.

  • Item type:Article
    ID code:73049
    Dates:
    Date
    Event
    10 December 2019
    Published
    29 October 2019
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:07 Jul 2020 02:39
    Last modified:09 Apr 2024 01:36
    URI:https://strathprints.strath.ac.uk/id/eprint/73049
CORE (COnnecting REpositories)