SciPost Submission Page
Full counting statistics in the sine--Gordon model
by Botond C. Nagy, Marton Kormos, Gabor Takacs
Submission summary
| Authors (as registered SciPost users): | Botond C. Nagy |
| Submission information | |
|---|---|
| Preprint Link: | https://arxiv.org/abs/2601.05079v1 (pdf) |
| Date submitted: | Jan. 16, 2026, 12:32 p.m. |
| Submitted by: | Botond C. Nagy |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
|
| Approaches: | Theoretical, Computational |
Abstract
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.
Author indications on fulfilling journal expectations
- Provide a novel and synergetic link between different research areas.
- Open a new pathway in an existing or a new research direction, with clear potential for multi-pronged follow-up work
- Detail a groundbreaking theoretical/experimental/computational discovery
- Present a breakthrough on a previously-identified and long-standing research stumbling block
Current status:
In refereeing