Effective Bethe Ansatz approximates ground and excited states of non-integrable spin-1 chains accurately near integrable points, as shown by energy, fidelity, and entanglement comparisons to exact diagonalization.
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Effective Bethe Ansatz for Spin-1 Non-integrable Models
Effective Bethe Ansatz approximates ground and excited states of non-integrable spin-1 chains accurately near integrable points, as shown by energy, fidelity, and entanglement comparisons to exact diagonalization.