arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0707.0653math-phhep-thmath.MP
收藏

具有一般可积边界项的开自旋-s XXZ链的完全Bethe Anasterian解

Complete Bethe Ansatz solution of the open spin-s XXZ chain with general integrable boundary terms

Luc Frappat, Rafael Nepomechie, Eric Ragoucy

摘要:

我们认为开放的自旋-sXXZ量子自旋链与N个网站和一般可积边界项的一般值的体各向异性参数,并为满足一定的约束条件的边界参数的值。我们推导出两组Bethe Answer方程,并找到数值证据,它们一起给出了完整的一套$(2s+1)^{N}$特征值的传输矩阵。对于s=1的情况下,我们明确确定的哈密顿量,并找到一个表达式,其特征值的贝特根。

英文摘要:

We consider the open spin-s XXZ quantum spin chain with N sites and general integrable boundary terms for generic values of the bulk anisotropy parameter, and for values of the boundary parameters which satisfy a certain constraint. We derive two sets of Bethe Ansatz equations, and find numerical evidence that together they give the complete set of $(2s+1)^{N}$ eigenvalues of the transfer matrix. For the case s=1, we explicitly determine the Hamiltonian, and find an expression for its eigenvalues in terms of Bethe roots.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑