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math-ph2026
Tensor-Network Analysis of Root Patterns in the XXX Model with Open Boundaries
Zhouzheng Ji, Pei Sun, Xiaotian Xu +3
The string hypothesis of Bethe roots is a cornerstone in the thermodynamic analysis of quantum integrable systems, since it connects root configurations with physical quantities su…
math-ph2024
Exact solution of a quantum integrable system associated with the exceptional Lie algebra
Guang-Liang Li, Junpeng Cao, Pei Sun +3
A quantum integrable spin chain model associated with the exceptional Lie algebra is studied. By using the fusion technique, the closed recursive relations among the fused tr…
math-ph2024
Exact surface energy of the Hubbard model with nonparallel boundary magnetic fields
Pei Sun, Yi Qiao, Tao Yang +2
In this study, we explore the precise physical quantities in the thermodynamic limit of the one-dimensional Hubbard model with nonparallel boundary magnetic fields based on the off…