Showing 2026 · math-phShow all
2 papers · 2 filters
math-ph2026
Bethe-root configurations and spectral degeneracy in the open XXZ chain with degenerate boundaries
Shizhang Wu, Shu Chen, Junpeng Cao +1
We investigate the structure of Bethe-root configurations in the spin-1/2 XXZ chain with degenerate open boundaries. The physical solutions of the Bethe Ansatz equations are classi…
math-ph2026
Integrable Stochastic Processes Associated with the Algebra
Guang-Liang Li, Xin Zhang, Junpeng Cao +2
We introduce an integrable stochastic process associated with the quantum group, which can be decomposed into two symmetric simple exclusion processes. We establish the integ…