Thermodynamics based on Neural Networks
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866907865814401024 |
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| author | Wagner, D. Klümper, A. Sirker, J. |
| author_facet | Wagner, D. Klümper, A. Sirker, J. |
| contents | We present three different neural network algorithms to calculate thermodynamic properties as well as dynamic correlation functions at finite temperatures for quantum lattice models. The first method is based on purification, which allows for the exact calculation of the operator trace. The second one is based on a sampling of the trace using minimally entangled states, whereas the third one makes use of quantum typicality. In the latter case, we approximate a typical infinite-temperature state by wave functions which are given by a product of a projected pair and a neural network part and evolve this typical state in imaginary time. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_13799 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Thermodynamics based on Neural Networks Wagner, D. Klümper, A. Sirker, J. Statistical Mechanics Disordered Systems and Neural Networks Strongly Correlated Electrons We present three different neural network algorithms to calculate thermodynamic properties as well as dynamic correlation functions at finite temperatures for quantum lattice models. The first method is based on purification, which allows for the exact calculation of the operator trace. The second one is based on a sampling of the trace using minimally entangled states, whereas the third one makes use of quantum typicality. In the latter case, we approximate a typical infinite-temperature state by wave functions which are given by a product of a projected pair and a neural network part and evolve this typical state in imaginary time. |
| title | Thermodynamics based on Neural Networks |
| topic | Statistical Mechanics Disordered Systems and Neural Networks Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2311.13799 |