Projects per year
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 |
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Article number | 033163 |
Number of pages | 6 |
Journal | PHYSICAL REVIEW RESEARCH |
Volume | 1 |
Issue number | 3 |
DOIs | |
Publication status | Published - 10 Dec 2019 |
MoE publication type | A1 Journal article-refereed |
Keywords
- SINGLE-ELECTRON TRANSISTOR
- NOISE
Projects
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SPINBUS: Quantum Bus for a Quantum Computer Based on Spins in Silicon
01/09/2020 → 31/08/2022
Project: Academy of Finland: Other research funding
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CRYOMET: Fast Cryogenic Microwave Photon Power Metrology in Superconducting Quantum Circuits (CRYOMET)
01/09/2018 → 31/08/2022
Project: Academy of Finland: Other research funding
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Finnish Centre of Excellence in Quantum Technology
Möttönen, M., Tuorila, J., Mäkinen, A., Ollikainen, T., Hazra, D. & Heinsoo, J.
01/01/2018 → 31/12/2019
Project: Academy of Finland: Other research funding
Equipment
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OtaNano - Nanofab
Päivikki Repo (Manager)
School of Electrical EngineeringFacility/equipment: Facility