arXiv 2103.145692021-03cond-mat.stat-mechhep-thmath-phmath.MPquant-ph

Conjectures on Hidden Onsager Algebra Symmetries in Interacting Quantum Lattice Models

Yuan Miao

备注：: 32 pages, 3 figures
发表信息：: SciPost Phys. 11, 066 (2021)
DOI：: 10.21468/SciPostPhys.11.3.066

英文摘要：

We conjecture the existence of hidden Onsager algebra symmetries in two interacting quantum integrable lattice models, i.e. spin-1/2 XXZ model and spin-1 Zamolodchikov-Fateev model at arbitrary root of unity values of the anisotropy. The conjectures relate the Onsager generators to the conserved charges obtained from semi-cyclic transfer matrices. The conjectures are motivated by two examples which are spin-1/2 XX model and spin-1 U(1)-invariant clock model. A novel construction of the semi-cyclic transfer matrices of spin-1 Zamolodchikov-Fateev model at arbitrary root of unity value of the anisotropy is carried out via transfer matrix fusion procedure.

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