Cited by 618Theoretical and Computational PhysicsQuantum many-body systemsMachine Learning in Materials Science

Discovering phase transitions with unsupervised learning

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Wang, Lei·2016·Physical Review B

Abstract

Unsupervised learning is a discipline of machine learning which aims at discovering patterns in large data sets or classifying the data into several categories without being trained explicitly. We show that unsupervised learning techniques can be readily used to identify phases and phases transitions of many-body systems. Starting with raw spin configurations of a prototypical Ising model, we use principal component analysis to extract relevant low-dimensional representations of the original data and use clustering analysis to identify distinct phases in the feature space. This approach successfully finds physical concepts such as the order parameter and structure factor to be indicators of a phase transition. We discuss the future prospects of discovering more complex phases and phase transitions using unsupervised learning techniques.

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Crossref · 10.1103/physrevb.94.195105

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Authors
Wang, L.
Affiliations
Chinese Academy of Sciences (CN)
Corresponding author
Wang, Lei
Venue
Physical Review B
Published
2016-11-02
Volume
94
Issue
19
ISSN
  • 2469-9950 (ISSN-L)
  • 2469-9969
OpenAlex
W2414456771
Cited by
618
References
1
Citations by year
2026: 33 · 2025: 57 · 2024: 60 · 2023: 57 · 2022: 74 · 2021: 91 · 2020: 97 · 2019: 66 · 2018: 52 · 2017: 29 · 2016: 1
FWCI
29.28
Type
journal article
Language
en
Open access
Locations
  • Physical review. B./Physical review. B (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
Ministry of Science and Technology of the People's Republic of China (2016YFA0300603)
Topics
  • Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Theoretical and Computational Physics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum many-body systems
  • Physical Sciences › Materials Science › Materials Chemistry › Machine Learning in Materials Science
Keywords
phase transitions, unsupervised learning, Ising model, spin configurations, principal component analysis, clustering, order parameter, structure factor, many-body systems, phase identification

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