Fast characterization of multiplexed single-electron pumps with machine learning
Schoinas, N. and Rath, Y. and Norimoto, S. and Xie, W. and See, P. and Griffiths, J.P. and Chen, C. and Ritchie, D.A. and Kataoka, M. and Rossi, Alessandro and Rungger, I. (2024) Fast characterization of multiplexed single-electron pumps with machine learning. Other. arXiv, Ithaca, NY. (https://doi.org/10.48550/arXiv.2405.20946)
Preview |
Text.
Filename: Schoinas-etal-arXiv-2024-Fast-characterization-of-multiplexed-single-electron-pumps.pdf
Final Published Version License: Download (870kB)| Preview |
Preview |
Text.
Filename: 2405.20946v1.pdf
Download (870kB)| Preview |
Abstract
We present an efficient machine learning based automated framework for the fast tuning of single-electron pump devices into current quantization regimes. It uses a sparse measurement approach based on an iterative active learning algorithm to take targeted measurements in the gate voltage parameter space. When compared to conventional parameter scans, our automated framework allows us to decrease the number of measurement points by about an order of magnitude. This corresponds to an eight-fold decrease in the time required to determine quantization errors, which are estimated via an exponential extrapolation of the first current plateau embedded into the algorithm. We show the robustness of the framework by characterizing 28 individual devices arranged in a GaAs/AlGaAs multiplexer array, which we use to identify a subset of devices suitable for parallel operation at communal gate voltages. The method opens up the possibility to efficiently scale the characterization of such multiplexed devices to a large number of pumps.
ORCID iDs
Schoinas, N., Rath, Y., Norimoto, S., Xie, W., See, P., Griffiths, J.P., Chen, C., Ritchie, D.A., Kataoka, M., Rossi, Alessandro ORCID: https://orcid.org/0000-0001-7935-7560 and Rungger, I.;-
-
Item type: Monograph(Other) ID code: 89978 Dates: DateEvent31 May 2024PublishedSubjects: Science > Physics > Nuclear and particle physics. Atomic energy. Radioactivity
Science > Mathematics > Electronic computers. Computer scienceDepartment: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 22 Jul 2024 11:57 Last modified: 01 Oct 2024 00:08 URI: https://strathprints.strath.ac.uk/id/eprint/89978