Physical Review Letters
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Exact Fractionalized Ground States in an Extended Spin-1 Kitaev Chain
Author(s): Alwyn Jose Raja and R. Ganesh
Inspired by the Affleck-Kennedy-Lieb-Tasaki (AKLT) model, we present exact solutions for a spin-1 chain with Kitaev-like couplings. We consider an expanded Kitaev model with bilinear and biquadratic terms. At an exactly solvable point, the Hamiltonian can be reexpressed as a sum of projection operat… [Phys. Rev. Lett. 137, 046701] Published Mon Jul 20, 2026