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

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2019-12-10
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Mcode
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Language
en
Pages
6
Series
PHYSICAL REVIEW RESEARCH, Volume 1, issue 3
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.
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Keywords
SINGLE-ELECTRON TRANSISTOR, NOISE
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Citation
Jenei , M , Potanina , E , Zhao , R , Tan , K Y , Rossi , A , Tanttu , T , Chan , K W , Sevriuk , V , Mottonen , M & Dzurak , A 2019 , ' Waiting time distributions in a two-level fluctuator coupled to a superconducting charge detector ' , PHYSICAL REVIEW RESEARCH , vol. 1 , no. 3 , 033163 . https://doi.org/10.1103/PhysRevResearch.1.033163