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Experimental Online Quantum Dots Charge Autotuning Using Neural Networks.

Victor Yon^1,2,3, Bastien Galaup^1,2,3, Claude Rohrbacher^2,3,4

¹Institut Interdisciplinaire d'Innovation Technologique (3IT), Université de Sherbrooke, Sherbrooke, QC Canada, J1K 0A5.

|February 27, 2025

Summary

This summary is machine-generated.

This study demonstrates an AI-driven system for autonomous calibration of quantum dot devices. It successfully tunes spin qubits to the one-electron regime with 95% accuracy, paving the way for scalable quantum computing.

Keywords:

autonomous calibration charge autotuning convolutional neural network machine learning quantum dot scalable quantum computing spin qubit

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

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Published on: June 3, 2015

Area of Science:

Quantum Computing
Semiconductor Physics
Machine Learning

Background:

Scalable quantum computing relies on spin-based semiconductor qubits.
Autonomous calibration is crucial for reliable qubit operation.
Current calibration methods can be time-consuming and require manual intervention.

Purpose of the Study:

To experimentally demonstrate online single-dot charge autotuning for quantum dot devices.
To develop a machine learning-driven closed-loop calibration system.
To achieve autonomous isolation of the one-electron regime.

Main Methods:

Integration of a convolutional neural network into a closed-loop calibration system.
Exploration of gate voltage space to identify charge transition lines.
Utilizing model uncertainty estimation for efficient gate configuration discovery.

Main Results:

Achieved a 95% success rate in locating the target electron regime across 20 experimental runs.
Demonstrated robustness against noise and distribution shifts.
Average tuning run duration of 2 hours and 9 minutes, limited by measurement speed.

Conclusions:

Validated the feasibility of machine learning-driven real-time charge autotuning for quantum dots.
This approach advances the development of control systems for large qubit arrays.
Enables autonomous operation, reducing human intervention in quantum device calibration.