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arXiv 1012.1055hep-th
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具有一般可积边界项的(非齐次)开自旋1 XXZ链的NLIE

On the NLIE of (inhomogeneous) open spin-1 XXZ chain with general integrable boundary terms

Rajan Murgan

摘要:

从具有一般可积边界项的开自旋-1XXZ量子自旋链的T-Q方程出发,对于满足一定约束条件的边界参数,导出了非均匀开自旋-1XXZ链的非线性积分方程.通过取这些非线性弹性体的连续极限,并与具有对角边界项的自旋为1的开XXZ链进行类比,我们计算了相应的超对称sine-Gordon(SSG)模型的边界和Casimir能量.我们还提出了一个有效的中心荷在紫外(UV)极限的分析结果。

英文摘要:

Starting from the T-Q equations of the open spin-1 XXZ quantum spin chain with general integrable boundary terms, for values of the boundary parameters which satisfy a certain constraint, we derive a set of nonlinear integral equations (NLIEs) for the inhomogeneous open spin-1 XXZ chain. By taking the continuum limit of these NLIEs, and working in analogy with the open spin-1 XXZ chain with diagonal boundary terms, we compute the boundary and the Casimir energies of the corresponding supersymmetric sine-Gordon (SSG) model. We also present an analytical result for the effective central charge in the ultraviolet (UV) limit.

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