摘要
The nested Bethe ansatz (BA) method is applied to find the eigenvalues and the eigenvectors of the transfer matrix for spin-ladder model with open boundary conditions. Based on the reflection equation, we find the general diagonal solution, which determines the generalboundary interaction in the Hamiltonian. We introduce the spin-ladder model with open boundary conditions. By finding the solution K± of the reflection equation which determines the nontrivial boundary terms in the Hamiltonian, we diagonalize the transfer matrix of the spin-ladder model with open boundary conditions in the framework of nested BA.
The nested Bethe ansatz (BA) method is applied to find the eigenvalues andthe eigenvectors of the transfer matrix for spin-ladder model with open boundary conditions. Basedon the reflection equation, we find the general diagonal solution, which determines the generalboundary interaction in the Hamiltonian. We introduce the spin-ladder model with open boundaryconditions. By finding the solution K~± of the reflection equation which determines the nontrivialboundary terms in the Hamiltonian, we diagonalize the transfer matrix of the spin-ladder model withopen boundary conditions in the framework of nested BA.
基金
国家自然科学基金
关键词
积分模型
连锁式贝蒂柄
量子逆散射法
数学物理方程
电子自旋梯
integrable model
coordinate bethe ansatz
quantum inverse scattering method
bethe ansatz equation
nested bethe ansatz
