Administration of EMP-related Publications

overview

year 2020
author(s) N.M. van Esbroeck, D.T. Lennon, H. Moon, V. Nguyen, F. Vigneau, L.C. Camenzind, L. Yu, D.M. Zumbühl, G.A.D. Briggs, D. Sejdinovic, N. Ares
title Quantum device fine-tuning using unsupervised embedding learning
document type Paper
source New J. Phys. 22,095003 (2020)
doi 10.1088/1367-2630/abb64c
arxiv https://arxiv.org/abs/2001.04409
EMP/Horizon2020 This publication includes a EMP/Horizon2020 acknowledgement.
abstract

Quantum devices with a large number of gate electrodes allow for precise control of device parameters. This capability is hard to fully exploit due to the complex dependence of these parameters on applied gate voltages. We experimentally demonstrate an algorithm capable of fine-tuning several device parameters at once. The algorithm acquires a measurement and assigns it a score using a variational auto-encoder. Gate voltage settings are set to optimise this score in real-time in an unsupervised fashion. We report fine-tuning times of a double quantum dot device within approximately 40 min.