3 papers
math-ph2025
Exact physical quantities of the spin chain model with generic open boundary conditions
Pengcheng Lu, Junpeng Cao, Wen-Li Yang +2
We study the quantum integrable spin chain model associated with the twisted algebra (or simply the model) under generic open boundary conditions. The Hamil…
math-ph2025
Exact surface energies and boundary excitations of the Izergin-Korepin model with generic boundary fields
Pengcheng Lu, Junpeng Cao, Wen-Li Yang +2
The Izergin-Korepin model is an integrable model with the simplest twisted quantum affine algebra symmetry. Applying the method, we derive the homogeneous ze…
cond-mat.stat-mech2024
T-W relation and free energy of the antiperiodic XXZ chain with η=iÏ/3 at a finite temperature
Pengcheng Lu, Junpeng Cao, Wen-Li Yang +2
We study the thermodynamics of the antiperiodic XXZ chain with anisotropy parameter η=iÏ/3 by means of the t-W method. We parameterize the eigenvalues of both the transfer matrix…