The Yang-Baxter integrability of the critical Ising chain

Fuente: arXiv
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Main Authors: Sinha, Akash, Justin, Tinu, Padmanabhan, Pramod, Korepin, Vladimir
Format: Preprint
Published: 2025
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author Sinha, Akash
Justin, Tinu
Padmanabhan, Pramod
Korepin, Vladimir
author_facet Sinha, Akash
Justin, Tinu
Padmanabhan, Pramod
Korepin, Vladimir
contents We show that the one dimensional, critical transverse field Ising model is Yang-Baxter integrable. This is done by constructing commuting transfer matrices built out of a $R$-matrix satisfying the Yang-Baxter equation with additive spectral parameters. The $R$-matrix is non-local, as it is expressed in terms of Majorana fermions. It is also non-regular. Nevertheless, we show that the quantum inverse scattering method can still be suitably adapted. We then recursively obtain the conserved quantities [in the infinite volume] by the boost operator method. Remarkably, among the conserved charges we also find the Kramers-Wannier duality and other non-invertible symmetries for the periodic transverse field Ising model.
format Preprint
id arxiv_https___arxiv_org_abs_2506_03668
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Yang-Baxter integrability of the critical Ising chain
Sinha, Akash
Justin, Tinu
Padmanabhan, Pramod
Korepin, Vladimir
High Energy Physics - Theory
Statistical Mechanics
Mathematical Physics
Exactly Solvable and Integrable Systems
Quantum Physics
We show that the one dimensional, critical transverse field Ising model is Yang-Baxter integrable. This is done by constructing commuting transfer matrices built out of a $R$-matrix satisfying the Yang-Baxter equation with additive spectral parameters. The $R$-matrix is non-local, as it is expressed in terms of Majorana fermions. It is also non-regular. Nevertheless, we show that the quantum inverse scattering method can still be suitably adapted. We then recursively obtain the conserved quantities [in the infinite volume] by the boost operator method. Remarkably, among the conserved charges we also find the Kramers-Wannier duality and other non-invertible symmetries for the periodic transverse field Ising model.
title The Yang-Baxter integrability of the critical Ising chain
topic High Energy Physics - Theory
Statistical Mechanics
Mathematical Physics
Exactly Solvable and Integrable Systems
Quantum Physics
url https://arxiv.org/abs/2506.03668