Computer-automated tuning of semiconductor double quantum dots into the single-electron regime

T. A. Baart, P. T. Eendebak, C Reichl, W Wegscheider, L. M.K. Vandersypen

Research output: Contribution to journalArticleScientificpeer-review

21 Citations (Scopus)

Abstract

We report the computer-automated tuning of gate-defined semiconductor double quantum dots in GaAs heterostructures. We benchmark the algorithm by creating three double quantum dots inside a linear array of four quantum dots. The algorithm sets the correct gate voltages for all the gates to tune the double quantum dots into the single-electron regime. The algorithm only requires (1) prior knowledge of the gate design and (2) the pinch-off value of the single gate T that is shared by all the quantum dots. This work significantly alleviates the user effort required to tune multiple quantum dot devices.

Original languageEnglish
Article number213104
Number of pages5
JournalApplied Physics Letters
Volume108
Issue number21
DOIs
Publication statusPublished - 2016

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