Waiting time distributions in a two-level fluctuator coupled to a superconducting charge detector
Mesoscale and Nanoscale Physics
2019-12-18 v2 Quantum Physics
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.
Keywords
Cite
@article{arxiv.1909.02866,
title = {Waiting time distributions in a two-level fluctuator coupled to a superconducting charge detector},
author = {Máté Jenei and Elina Potanina and Ruichen Zhao and Kuan Y. Tan and Alessandro Rossi and Tuomo Tanttu and Kok W. Chan and Vasilii Sevriuk and Mikko Möttönen and Andrew Dzurak},
journal= {arXiv preprint arXiv:1909.02866},
year = {2019}
}
Comments
7 pages, 4 figures