Machine learning for many-body physics: The case of the Anderson impurity model
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Columbia Univ., New York, NY (United States). Dept. of Physics
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
- Univ. of Basel (Switzerland). Inst. of Physics Chemistry; Argonne National Lab. (ANL), Argonne, IL (United States). Argonne Leadership Computing Facility
We applied machine learning methods in order to find the Green's function of the Anderson impurity model, a basic model system of quantum many-body condensed-matter physics. Furthermore, different methods of parametrizing the Green's function are investigated; a representation in terms of Legendre polynomials is found to be superior due to its limited number of coefficients and its applicability to state of the art methods of solution. The dependence of the errors on the size of the training set is determined. Our results indicate that a machine learning approach to dynamical mean-field theory may be feasible.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Science Foundation (NSF)
- Grant/Contract Number:
- AC02-06CH11357; 3F-3138
- OSTI ID:
- 1357598
- Alternate ID(s):
- OSTI ID: 1180270
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 90, Issue 15; ISSN 1098-0121
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 104 works
Citation information provided by
Web of Science
Web of Science
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