Phase determination with and without deep learning
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866913694525423616 |
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| author | Çivitcioğlu, Burak Römer, Rudolf A. Honecker, Andreas |
| author_facet | Çivitcioğlu, Burak Römer, Rudolf A. Honecker, Andreas |
| contents | Detection of phase transitions is a critical task in statistical physics, traditionally pursued through analytic methods and direct numerical simulations. Recently, machine-learning techniques have emerged as promising tools in this context, with a particular focus on supervised and unsupervised learning methods, along with non-learning approaches. In this work, we study the performance of unsupervised learning in detecting phase transitions in the $J_1$-$J_2$ Ising model on the square lattice. The model is chosen due to its simplicity and complexity, thus providing an understanding of the application of machine-learning techniques in both straightforward and challenging scenarios. We propose a simple method based on a direct comparison of configurations. The reconstruction error, defined as the mean-squared distance between two configurations, is used to determine the critical temperatures ($T_c$). The results from the comparison of configurations are contrasted with that of the configurations generated by variational autoencoders. Our findings highlight that for certain systems, a simpler method can yield results comparable to more complex neural networks. This work contributes to the broader understanding of machine-learning applications in statistical physics and introduces an efficient approach to the detection of phase transitions using machine determination techniques. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_09786 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Phase determination with and without deep learning Çivitcioğlu, Burak Römer, Rudolf A. Honecker, Andreas Statistical Mechanics Disordered Systems and Neural Networks Detection of phase transitions is a critical task in statistical physics, traditionally pursued through analytic methods and direct numerical simulations. Recently, machine-learning techniques have emerged as promising tools in this context, with a particular focus on supervised and unsupervised learning methods, along with non-learning approaches. In this work, we study the performance of unsupervised learning in detecting phase transitions in the $J_1$-$J_2$ Ising model on the square lattice. The model is chosen due to its simplicity and complexity, thus providing an understanding of the application of machine-learning techniques in both straightforward and challenging scenarios. We propose a simple method based on a direct comparison of configurations. The reconstruction error, defined as the mean-squared distance between two configurations, is used to determine the critical temperatures ($T_c$). The results from the comparison of configurations are contrasted with that of the configurations generated by variational autoencoders. Our findings highlight that for certain systems, a simpler method can yield results comparable to more complex neural networks. This work contributes to the broader understanding of machine-learning applications in statistical physics and introduces an efficient approach to the detection of phase transitions using machine determination techniques. |
| title | Phase determination with and without deep learning |
| topic | Statistical Mechanics Disordered Systems and Neural Networks |
| url | https://arxiv.org/abs/2403.09786 |