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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2601.05079 |
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| _version_ | 1866908754035867648 |
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| author | Nagy, Botond C. Kormos, Marton Takacs, Gabor |
| author_facet | Nagy, Botond C. Kormos, Marton Takacs, Gabor |
| contents | Full counting statistics (FCS) is a dynamical generalisation of the free energy, encapsulating detailed information about the distribution and large-scale correlation functions of conserved charges and their associated currents. In this work, we present a comprehensive numerical study of the FCS and the cumulants of the three lowest charges across the full parameter space of the sine--Gordon field theory. To this end, we extend the thermodynamic Bethe Ansatz (TBA) formulation of the FCS to the sine--Gordon model, emphasise the methodological subtleties for a reliable numerical implementation, and compare numerical results with analytical predictions in certain limits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_05079 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Full counting statistics in the sine--Gordon model Nagy, Botond C. Kormos, Marton Takacs, Gabor Statistical Mechanics Full counting statistics (FCS) is a dynamical generalisation of the free energy, encapsulating detailed information about the distribution and large-scale correlation functions of conserved charges and their associated currents. In this work, we present a comprehensive numerical study of the FCS and the cumulants of the three lowest charges across the full parameter space of the sine--Gordon field theory. To this end, we extend the thermodynamic Bethe Ansatz (TBA) formulation of the FCS to the sine--Gordon model, emphasise the methodological subtleties for a reliable numerical implementation, and compare numerical results with analytical predictions in certain limits. |
| title | Full counting statistics in the sine--Gordon model |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2601.05079 |