Unsupervised and supervised learning of interacting topological phases from single-particle correlation functions
Simone Tibaldi, Giuseppe Magnifico, Davide Vodola, Elisa Ercolessi
SciPost Phys. 14, 005 (2023) · published 19 January 2023
- doi: 10.21468/SciPostPhys.14.1.005
- Submissions/Reports
Abstract
The recent advances in machine learning algorithms have boosted the application of these techniques to the field of condensed matter physics, in order e.g. to classify the phases of matter at equilibrium or to predict the real-time dynamics of a large class of physical models. Typically in these works, a machine learning algorithm is trained and tested on data coming from the same physical model. Here we demonstrate that unsupervised and supervised machine learning techniques are able to predict phases of a non-exactly solvable model when trained on data of a solvable model. In particular, we employ a training set made by single-particle correlation functions of a non-interacting quantum wire and by using principal component analysis, k-means clustering, t-distributed stochastic neighbor embedding and convolutional neural networks we reconstruct the phase diagram of an interacting superconductor. We show that both the principal component analysis and the convolutional neural networks trained on the data of the non-interacting model can identify the topological phases of the interacting model. Our findings indicate that non-trivial phases of matter emerging from the presence of interactions can be identified by means of unsupervised and supervised techniques applied to data of non-interacting systems.
Cited by 17
Authors / Affiliations: mappings to Contributors and Organizations
See all Organizations.- 1 2 Simone Tibaldi,
- 3 4 Giuseppe Magnifico,
- 1 2 Davide Vodola,
- 1 2 Elisa Ercolessi
- 1 INFN Sezione di Bologna / INFN Bologna [INFN Bologna]
- 2 Università di Bologna / University of Bologna [UNIBO]
- 3 Università degli Studi di Padova / University of Padua [UNIPD]
- 4 INFN Sezione di Padova / INFN Padova Division [INFN Padova]
- European Commission [EC]
- Horizon 2020 (through Organization: European Commission [EC])
- Instituto Nazionale di Fisica Nucleare (INFN) (through Organization: Istituto Nazionale di Fisica Nucleare / National Institute for Nuclear Physics [INFN])
- Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR) (through Organization: Ministero dell'Istruzione, dell'Università e della Ricerca / Ministry of Education, Universities and Research [MIUR])