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arXiv 2110.07960hep-thmath-phmath.MPnlin.SI
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关于$\mathfrak{gl}(N)$对称自旋链的精确重叠

On exact overlaps for $\mathfrak{gl}(N)$ symmetric spin chains

Tamás Gombor

摘要:

研究了具有$\mathfrak{gl}(N)$ -不变R-矩阵的嵌套代数Bethe变换可解的量子可积模型的可积二格点态。我们研究了可积的两格点态与波函数的重叠。寻找嵌套可积系统的因式分解重叠公式的精确导子是一个长期未解决的问题。本文导出了$\mathfrak{gl}(N)$对称自旋链的一大类可积态。推导的第一部分是计算出离壳重叠的递推关系,并证明了多粒子态的归一化重叠具有因子分解形式,它包含了单粒子重叠与Gaudin型行列式之比的乘积。我们还表明,以前提出的重叠公式同意我们的一般公式。

英文摘要:

We study the integrable two-site states of the quantum integrable models solvable by the nested algebraic Bethe ansatz and possessing $\mathfrak{gl}(N)$-invariant R-matrix. We investigate the overlaps between the integrable two-site states and the wave-functions. To find exact derivations for the factorized overlap formulas for the nested integrable systems is a longstanding unsolved problem. In this paper we give a derivation for a large class of the integrable states of the $\mathfrak{gl}(N)$ symmetric spin chain. The first part of the derivation is to calculate recurrence relations for the off-shell overlap that uniquely fix it. Using these recursions we prove that the normalized overlaps of the multi-particle states have factorized forms which contain the products of the one-particle overlaps and the ratio of the Gaudin-like determinants. We also show that the previously proposed overlap formulas agree with our general formula.

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。

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