• Accepted Paper

Topological and trivial valence-bond orders in higher-spin Kitaev models

Xing-Yu Zhang, Qi Yang, Philippe Corboz, Jutho Haegeman, and Yuchi He

Phys. Rev. Lett. - Accepted 13 July, 2026

DOI: https://doi.org/10.1103/7q31-xxsd

Abstract

We investigate the quantum phases of higher-spin Kitaev models using tensor network methods. Our results reveal distinct bond-ordered phases for spin-1, spin-32, and spin-2 models. In all cases, we find translational symmetry breaking with unit cells being tripled by forming valence-bond orders. However, these three phases are distinct, forming plaquette order, topological dimer order, and non-topological dimer order, respectively. Our findings are based on a cross-validation between variational two-dimensional tensor network calculations: an unrestricted exploration of symmetry-broken states versus the detection of symmetry breaking from cat-state behavior in symmetry-restricted states. The origin of different orders can also be understood from a theoretical analysis. Our work sheds light upon the interplay between topological and symmetry-breaking orders as well as their detection via tensor networks.

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