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Article: Flexible learning of quantum states with generative query neural networks

TitleFlexible learning of quantum states with generative query neural networks
Authors
Issue Date20-Oct-2022
PublisherNature Research
Citation
Nature Communications, 2022, v. 13, n. 1 How to Cite?
Abstract

The use of machine learning to characterise quantum states has been demonstrated, but usually training the algorithm using data from the same state one wants to characterise. Here, the authors show an algorithm that can learn all states that share structural similarities with the ones used for the training.

Deep neural networks are a powerful tool for characterizing quantum states. Existing networks are typically trained with experimental data gathered from the quantum state that needs to be characterized. But is it possible to train a neural network offline, on a different set of states? Here we introduce a network that can be trained with classically simulated data from a fiducial set of states and measurements, and can later be used to characterize quantum states that share structural similarities with the fiducial states. With little guidance of quantum physics, the network builds its own data-driven representation of a quantum state, and then uses it to predict the outcome statistics of quantum measurements that have not been performed yet. The state representations produced by the network can also be used for tasks beyond the prediction of outcome statistics, including clustering of quantum states and identification of different phases of matter.


Persistent Identifierhttp://hdl.handle.net/10722/331294
ISSN
2023 Impact Factor: 14.7
2023 SCImago Journal Rankings: 4.887
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhu, Y-
dc.contributor.authorWu, YD-
dc.contributor.authorBai, G-
dc.contributor.authorWang, DS-
dc.contributor.authorWang, YX-
dc.contributor.authorChiribella, G-
dc.date.accessioned2023-09-21T06:54:26Z-
dc.date.available2023-09-21T06:54:26Z-
dc.date.issued2022-10-20-
dc.identifier.citationNature Communications, 2022, v. 13, n. 1-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10722/331294-
dc.description.abstract<p>The use of machine learning to characterise quantum states has been demonstrated, but usually training the algorithm using data from the same state one wants to characterise. Here, the authors show an algorithm that can learn all states that share structural similarities with the ones used for the training.</p><p>Deep neural networks are a powerful tool for characterizing quantum states. Existing networks are typically trained with experimental data gathered from the quantum state that needs to be characterized. But is it possible to train a neural network offline, on a different set of states? Here we introduce a network that can be trained with classically simulated data from a fiducial set of states and measurements, and can later be used to characterize quantum states that share structural similarities with the fiducial states. With little guidance of quantum physics, the network builds its own data-driven representation of a quantum state, and then uses it to predict the outcome statistics of quantum measurements that have not been performed yet. The state representations produced by the network can also be used for tasks beyond the prediction of outcome statistics, including clustering of quantum states and identification of different phases of matter.</p>-
dc.languageeng-
dc.publisherNature Research-
dc.relation.ispartofNature Communications-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleFlexible learning of quantum states with generative query neural networks-
dc.typeArticle-
dc.identifier.doi10.1038/s41467-022-33928-z-
dc.identifier.scopuseid_2-s2.0-85140231170-
dc.identifier.volume13-
dc.identifier.issue1-
dc.identifier.eissn2041-1723-
dc.identifier.isiWOS:000870821400015-
dc.identifier.issnl2041-1723-

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