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Confinement in the three-state Potts quantum spin chain in extreme ferromagnetic limit
by Anna Krasznai, Sergei Rutkevich, Gábor Takács
Submission summary
| Authors (as registered SciPost users): | Anna Krasznai |
| Submission information | |
|---|---|
| Preprint Link: | https://arxiv.org/abs/2508.20821v2 (pdf) |
| Date submitted: | Sept. 30, 2025, 11:12 a.m. |
| Submitted by: | Anna Krasznai |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Computational |
Abstract
We examine the dynamics of the three-state Potts quantum spin chain in the extreme ferromagnetic regime using perturbation theory in the transverse magnetic field. We demonstrate that this approach provides access to features well beyond the semiclassical method applied previously, including the description of resonant excitations and analytic prediction for the time evolution after a quantum quench. We also demonstrate that it agrees with the meson/bubble spectrum results from exact diagonalisation and the numerical simulations of the time evolution.
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