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

Mate Jenei; Elina Potanina; Ruichen Zhao; Kuan Y. Tan; Alessandro Rossi; Tuomo Tanttu; Kok W. Chan; Vasilii Sevriuk; Mikko Mottonen; Andrew Dzurak

doi:10.1103/PhysRevResearch.1.033163

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

Mate Jenei^*, Elina Potanina, Ruichen Zhao, Kuan Y. Tan, Alessandro Rossi, Tuomo Tanttu, Kok W. Chan, Vasilii Sevriuk, Mikko Mottonen, Andrew Dzurak

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

71 Downloads (Pure)

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.

Original language	English
Article number	033163
Number of pages	6
Journal	Physical Review Research
Volume	1
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevResearch.1.033163
Publication status	Published - 10 Dec 2019
MoE publication type	A1 Journal article-refereed

Funding

E.P. thanks C. Flindt for helpful comments. This work was carried out as part of the Academy of Finland Centre of Excellence program, Grants No. 312300, No. 308161, No. 314302, and No. 316551. E.P. acknowledges support from the Vilho, Yrjo and Kalle Vaisala Foundation of the Finnish Academy of Science and Letters through the grant for doctoral studies. We acknowledge the provision of facilities and technical support by Aalto University at OtaNano -Micronova and the NSW Node of the Australian National Fabrication Facility, where the devices were fabricated. We acknowledge funding from the Joint Research Project 'e-SI-Amp' (15SIB08) and the Australian Research Council (DP160104923). This project has received funding from the European Metrology Programme for Innovation and Research (EMPIR) co-financed by the Participating States and from the European Union Horizon 2020 research and innovation programme.

Keywords

SINGLE-ELECTRON TRANSISTOR
NOISE

Access to Document

10.1103/PhysRevResearch.1.033163

Jenei_Waiting_Time.PhysRevResearch.1.033163Final published version, 596 KBLicence: CC BY

Tan Kuan AT-kulut 2: Quantum Bus for a Quantum Computer Based on Spins in Silicon
Tan, K. (Principal investigator), Tuohino, S. (Project Member), Duda, R. (Project Member), Silvennoinen, A. (Project Member), Gunyho, A. (Project Member), Suominen, H. (Project Member) & Kivijärvi, H. (Project Member)
01/09/2020 → 31/08/2022
Project: RCF Academy Research Fellow: Research costs
CRYOMET: Fast Cryogenic Microwave Photon Power Metrology in Superconducting Quantum Circuits (CRYOMET)
Tan, K. (Principal investigator), Santos Teixeira, W. (Project Member), Sevriuk, V. (Project Member), Zamora Zamora, R. (Project Member), Gunyho, A. (Project Member), Rasola, M. (Project Member) & Ilves, J. (Project Member)
01/09/2018 → 31/08/2022
Project: Academy of Finland: Other research funding
Finnish Centre of Excellence in Quantum Technology
Möttönen, M. (Principal investigator), Tuorila, J. (Project Member), Mäkinen, A. (Project Member), Sevriuk, V. (Project Member), Ilves, J. (Project Member), Hazra, D. (Project Member), Ollikainen, T. (Project Member) & Heinsoo, J. (Project Member)
01/01/2018 → 31/12/2019
Project: Academy of Finland: Other research funding

OtaNano
Rissanen, A. (Manager)
Aalto University
Facility/equipment: Facility
OtaNano - Nanofab
Repo, P. (Manager) & Rissanen, A. (Other)
OtaNano
Facility/equipment: Facility

Cite this

@article{5ebc168a688547aa9acee8e6b61c59d7,

title = "Waiting time distributions in a two-level fluctuator coupled to a superconducting charge detector",

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 = "SINGLE-ELECTRON TRANSISTOR, NOISE",

author = "Mate Jenei and Elina Potanina and Ruichen Zhao and Tan, \{Kuan Y.\} and Alessandro Rossi and Tuomo Tanttu and Chan, \{Kok W.\} and Vasilii Sevriuk and Mikko Mottonen and Andrew Dzurak",

year = "2019",

month = dec,

day = "10",

doi = "10.1103/PhysRevResearch.1.033163",

language = "English",

volume = "1",

journal = "Physical Review Research",

issn = "2643-1564",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - Waiting time distributions in a two-level fluctuator coupled to a superconducting charge detector

AU - Jenei, Mate

AU - Potanina, Elina

AU - Zhao, Ruichen

AU - Tan, Kuan Y.

AU - Rossi, Alessandro

AU - Tanttu, Tuomo

AU - Chan, Kok W.

AU - Sevriuk, Vasilii

AU - Mottonen, Mikko

AU - Dzurak, Andrew

PY - 2019/12/10

Y1 - 2019/12/10

N2 - 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.

AB - 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.

KW - SINGLE-ELECTRON TRANSISTOR

KW - NOISE

U2 - 10.1103/PhysRevResearch.1.033163

DO - 10.1103/PhysRevResearch.1.033163

M3 - Article

SN - 2643-1564

VL - 1

JO - Physical Review Research

JF - Physical Review Research

IS - 3

M1 - 033163

ER -

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

Abstract

Funding

Keywords

Access to Document

Fingerprint

Projects

Tan Kuan AT-kulut 2: Quantum Bus for a Quantum Computer Based on Spins in Silicon

CRYOMET: Fast Cryogenic Microwave Photon Power Metrology in Superconducting Quantum Circuits (CRYOMET)

Finnish Centre of Excellence in Quantum Technology

Equipment

OtaNano

OtaNano - Nanofab

Cite this