A1 Refereed original research article in a scientific journal

Almost local integrable models from supersymmetry algebras




AuthorsMaity, Somnath; Padmanabhan, Pramod; Hietarinta, Jarmo; Korepin, Vladimir

PublisherIOP Publishing

Publication year2026

Journal: Journal of Physics A: Mathematical and Theoretical

Article number205202

Volume59

Issue20

ISSN1751-8113

eISSN1751-8121

DOIhttps://doi.org/10.1088/1751-8121/ae6a4f

Publication's open availability at the time of reportingNo Open Access

Publication channel's open availability Partially Open Access publication channel

Web address https://doi.org/10.1088/1751-8121/ae6a4f

Self-archived copy's versionPublisher`s PDF


Abstract

Supersymmetry algebras can be used to obtain algebraic expressions for constant Yang-Baxter solutions, also known as braid group generators. This was done for non-invertible braid operators in Maity et al (2025 J. High Energy Phys 5 1-31) In this work we extend this construction for the invertible ones. The resulting expressions are then shown to obey relations analogous to those satisfied by quotients of braid groups. Examples of the latter include the Iwahori-Hecke algebra and the Birman-Murakami-Wenzl algebra. As a result, we can Baxterize the constant Yang-Baxter solutions to yield spectral parameter dependent R-matrices. The regularity of these R-matrices depends on the representation of SUSY generators. In some cases they are regular in the usual sense and in the remaining they are 'almost' regular. In the latter case they are also non-invertible. Nevertheless, we show that they can still help us construct integrable models in all dimensions of the local Hilbert space. These models can be described by Hamiltonian densities that are either local or non-local, depending on the representation chosen for the SUSY generators. We demonstrate this for all constant 4 & times;4 invertible Yang-Baxter solutions. Apart from reproducing nearest-neighbor interaction spin 12 systems, we also find their higher spin analogs due to the algebraic [representation independent] approach.


Funding information in the publication
We thank the anonymous Referees of Journal of Physics A, for their valuable comments and suggestions to improve the manuscript. VK is funded by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Co-Design Center for Quantum Advantage ( C2QA) under Contract No. DE-SC0012704.


Last updated on 15/06/2026 07:25:13 AM