• Open Access

Algorithm for automated tuning of a quantum dot into the single-electron regime

M. Lapointe-Major, O. Germain, J. Camirand Lemyre, D. Lachance-Quirion, S. Rochette, F. Camirand Lemyre, and M. Pioro-Ladrière
Phys. Rev. B 102, 085301 – Published 3 August 2020
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Abstract

We report an algorithm designed to perform computer-automated tuning of a single quantum dot with a charge sensor. The algorithm performs an adaptive measurement sequence of subsized stability diagrams until the single-electron regime is identified and reached. For each measurement, the signal processing module removes the physical background of the charge sensor to generate a binary image of charge transitions. Then, the image analysis module identifies the position and number of lines using two line detection schemes that are robust to noise and missing data.

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  • Received 14 January 2020
  • Revised 17 April 2020
  • Accepted 27 May 2020

DOI:https://doi.org/10.1103/PhysRevB.102.085301

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

M. Lapointe-Major1,*, O. Germain2, J. Camirand Lemyre1, D. Lachance-Quirion1, S. Rochette1, F. Camirand Lemyre2, and M. Pioro-Ladrière1

  • 1Institut quantique and Département de Physique, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1
  • 2Département de Mathématiques, Université de Sherbrooke, Sherbrooke, Québec, Canada J1K 2R1

  • *maxime.lapointe-major@usherbrooke.ca

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Issue

Vol. 102, Iss. 8 — 15 August 2020

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