Demonstration of machine-learning-enhanced Bayesian quantum state estimation

Machine learning (ML) has found broad applicability in quantum information science in topics as diverse as experimental design, state classification, and even studies on quantum foundations. Here, we experimentally realize an approach for defining custom prior distributions that are automatically tu...

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Main Authors: Sanjaya Lohani, Joseph M Lukens, Atiyya A Davis, Amirali Khannejad, Sangita Regmi, Daniel E Jones, Ryan T Glasser, Thomas A Searles, Brian T Kirby
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/ace6c8
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author Sanjaya Lohani
Joseph M Lukens
Atiyya A Davis
Amirali Khannejad
Sangita Regmi
Daniel E Jones
Ryan T Glasser
Thomas A Searles
Brian T Kirby
author_facet Sanjaya Lohani
Joseph M Lukens
Atiyya A Davis
Amirali Khannejad
Sangita Regmi
Daniel E Jones
Ryan T Glasser
Thomas A Searles
Brian T Kirby
author_sort Sanjaya Lohani
collection DOAJ
description Machine learning (ML) has found broad applicability in quantum information science in topics as diverse as experimental design, state classification, and even studies on quantum foundations. Here, we experimentally realize an approach for defining custom prior distributions that are automatically tuned using ML for Bayesian quantum state estimation methods that generally better conform to the physical properties of the underlying system than standard fixed prior distributions. Previously, researchers have looked to Bayesian quantum state tomography for advantages like uncertainty quantification, the return of reliable estimates under any measurement condition, and minimal mean-squared error. However, practical challenges related to long computation times and conceptual issues concerning how to incorporate prior knowledge most suitably can overshadow these benefits. Using both simulated and experimental measurement results, we demonstrate that ML-defined prior distributions reduce net convergence times and provide a natural way to incorporate both implicit and explicit information directly into the prior distribution. These results constitute a promising path toward practical implementations of Bayesian quantum state tomography.
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spelling doaj.art-4bc83cff1a96474187361e95d29270362023-08-09T14:13:49ZengIOP PublishingNew Journal of Physics1367-26302023-01-0125808300910.1088/1367-2630/ace6c8Demonstration of machine-learning-enhanced Bayesian quantum state estimationSanjaya Lohani0https://orcid.org/0000-0003-0699-0669Joseph M Lukens1https://orcid.org/0000-0001-9650-4462Atiyya A Davis2Amirali Khannejad3Sangita Regmi4https://orcid.org/0000-0002-7857-4253Daniel E Jones5https://orcid.org/0000-0002-9854-5767Ryan T Glasser6Thomas A Searles7https://orcid.org/0000-0002-0532-7884Brian T Kirby8https://orcid.org/0000-0002-2698-9887Department of Electrical & Computer Engineering University of Illinois Chicago , Chicago, IL 60607, United States of AmericaResearch Technology Office and Quantum Collaborative, Arizona State University , Tempe, AZ 85287, United States of America; Quantum Information Science Section, Oak Ridge National Laboratory , Oak Ridge, TN 37831, United States of AmericaDepartment of Electrical & Computer Engineering University of Illinois Chicago , Chicago, IL 60607, United States of AmericaDepartment of Electrical & Computer Engineering University of Illinois Chicago , Chicago, IL 60607, United States of AmericaDepartment of Electrical & Computer Engineering University of Illinois Chicago , Chicago, IL 60607, United States of AmericaDEVCOM Army Research Laboratory , Adelphi, MD 20783, United States of AmericaTulane University , New Orleans, LA 70118, United States of AmericaDepartment of Electrical & Computer Engineering University of Illinois Chicago , Chicago, IL 60607, United States of AmericaDEVCOM Army Research Laboratory , Adelphi, MD 20783, United States of America; Tulane University , New Orleans, LA 70118, United States of AmericaMachine learning (ML) has found broad applicability in quantum information science in topics as diverse as experimental design, state classification, and even studies on quantum foundations. Here, we experimentally realize an approach for defining custom prior distributions that are automatically tuned using ML for Bayesian quantum state estimation methods that generally better conform to the physical properties of the underlying system than standard fixed prior distributions. Previously, researchers have looked to Bayesian quantum state tomography for advantages like uncertainty quantification, the return of reliable estimates under any measurement condition, and minimal mean-squared error. However, practical challenges related to long computation times and conceptual issues concerning how to incorporate prior knowledge most suitably can overshadow these benefits. Using both simulated and experimental measurement results, we demonstrate that ML-defined prior distributions reduce net convergence times and provide a natural way to incorporate both implicit and explicit information directly into the prior distribution. These results constitute a promising path toward practical implementations of Bayesian quantum state tomography.https://doi.org/10.1088/1367-2630/ace6c8quantum tomographyBayesian techniquesmachine learning
spellingShingle Sanjaya Lohani
Joseph M Lukens
Atiyya A Davis
Amirali Khannejad
Sangita Regmi
Daniel E Jones
Ryan T Glasser
Thomas A Searles
Brian T Kirby
Demonstration of machine-learning-enhanced Bayesian quantum state estimation
New Journal of Physics
quantum tomography
Bayesian techniques
machine learning
title Demonstration of machine-learning-enhanced Bayesian quantum state estimation
title_full Demonstration of machine-learning-enhanced Bayesian quantum state estimation
title_fullStr Demonstration of machine-learning-enhanced Bayesian quantum state estimation
title_full_unstemmed Demonstration of machine-learning-enhanced Bayesian quantum state estimation
title_short Demonstration of machine-learning-enhanced Bayesian quantum state estimation
title_sort demonstration of machine learning enhanced bayesian quantum state estimation
topic quantum tomography
Bayesian techniques
machine learning
url https://doi.org/10.1088/1367-2630/ace6c8
work_keys_str_mv AT sanjayalohani demonstrationofmachinelearningenhancedbayesianquantumstateestimation
AT josephmlukens demonstrationofmachinelearningenhancedbayesianquantumstateestimation
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AT amiralikhannejad demonstrationofmachinelearningenhancedbayesianquantumstateestimation
AT sangitaregmi demonstrationofmachinelearningenhancedbayesianquantumstateestimation
AT danielejones demonstrationofmachinelearningenhancedbayesianquantumstateestimation
AT ryantglasser demonstrationofmachinelearningenhancedbayesianquantumstateestimation
AT thomasasearles demonstrationofmachinelearningenhancedbayesianquantumstateestimation
AT briantkirby demonstrationofmachinelearningenhancedbayesianquantumstateestimation