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Bethe ansatz solution to integrable bosonic cube networks
Published 5 Feb 2026 in math-ph | (2602.05320v1)
Abstract: We study two extended Bose-Hubbard-type Hamiltonians representing bosonic networks restricted to the graph of a cube. For both Hamiltonians, we demonstrate that Bethe ansatz methods of solution can be employed after applying a canonical transformation of operators. We provide the resulting Bethe ansatz equations, and corresponding formulae for states and energies of both Hamiltonians.
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