Specific heat of the driven Curie-Weiss model
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866908348160409600 |
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| author | Fiori, Elena Rufeil Maes, Christian Vidts, Robbe |
| author_facet | Fiori, Elena Rufeil Maes, Christian Vidts, Robbe |
| contents | Applying a time-periodic magnetic field to the standard ferromagnetic Curie-Weiss model brings the spin system in a steady out-of-equilibrium condition. We recall how the hysteresis gets influenced by the amplitude and the frequency of that field, and how an amplitude- and frequency-dependent (dynamical) critical temperature can be discerned. The dissipated power measures the area of the hysteresis loop and changes with temperature. The excess heat determines a nonequilibrium specific heat giving the quasistatic response. We compute that specific heat, which appears to diverge at the critical temperature, quite different from the equilibrium case. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_10198 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Specific heat of the driven Curie-Weiss model Fiori, Elena Rufeil Maes, Christian Vidts, Robbe Statistical Mechanics Applying a time-periodic magnetic field to the standard ferromagnetic Curie-Weiss model brings the spin system in a steady out-of-equilibrium condition. We recall how the hysteresis gets influenced by the amplitude and the frequency of that field, and how an amplitude- and frequency-dependent (dynamical) critical temperature can be discerned. The dissipated power measures the area of the hysteresis loop and changes with temperature. The excess heat determines a nonequilibrium specific heat giving the quasistatic response. We compute that specific heat, which appears to diverge at the critical temperature, quite different from the equilibrium case. |
| title | Specific heat of the driven Curie-Weiss model |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2409.10198 |