Twisted symmetric exclusion processes and set-theoretical $R$-matrices
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| Format: | Preprint |
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2026
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| _version_ | 1866917284108304384 |
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| author | Dabrowski, Mathieu d'Andecy, Loïc Poulain Ragoucy, Eric |
| author_facet | Dabrowski, Mathieu d'Andecy, Loïc Poulain Ragoucy, Eric |
| contents | We investigate periodic integrable Markov models, constructed from set-theoretical solutions of the Yang-Baxter equation. We first focus on the simplest class of solutions, called Lyubashenko solutions. We show that the resulting models are equivalent to some twisted Symmetric Simple Exclusion Process (SSEP), which are usual periodic SSEP models where a twist is added on a bond of the ring. We also provide various possible interpretations for these Markov models. Then, we study the long time dynamics of the twisted SSEP, characterising its different stationary states and counting them. Allowing the twist to vary, we examine the possible transitions between the different stationary states. Finally, we extend our construction of Markov models to set-theoretical solutions that are more general than Lyubashenko solutions and show that such models are not equivalent to a twisted SSEP in general. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2602_18204 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Twisted symmetric exclusion processes and set-theoretical $R$-matrices Dabrowski, Mathieu d'Andecy, Loïc Poulain Ragoucy, Eric Mathematical Physics Statistical Mechanics Quantum Algebra Exactly Solvable and Integrable Systems We investigate periodic integrable Markov models, constructed from set-theoretical solutions of the Yang-Baxter equation. We first focus on the simplest class of solutions, called Lyubashenko solutions. We show that the resulting models are equivalent to some twisted Symmetric Simple Exclusion Process (SSEP), which are usual periodic SSEP models where a twist is added on a bond of the ring. We also provide various possible interpretations for these Markov models. Then, we study the long time dynamics of the twisted SSEP, characterising its different stationary states and counting them. Allowing the twist to vary, we examine the possible transitions between the different stationary states. Finally, we extend our construction of Markov models to set-theoretical solutions that are more general than Lyubashenko solutions and show that such models are not equivalent to a twisted SSEP in general. |
| title | Twisted symmetric exclusion processes and set-theoretical $R$-matrices |
| topic | Mathematical Physics Statistical Mechanics Quantum Algebra Exactly Solvable and Integrable Systems |
| url | https://arxiv.org/abs/2602.18204 |