arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0806.3953cond-mat.str-elcond-mat.stat-mechhep-th
收藏

XXZ链中的短程热相关性

Short-distance thermal correlations in the XXZ chain

Herman E. Boos, Jens Damerau, Frank Göhmann, Andreas Klümper, Junji Suzuki, Alexander Weiße

摘要:

最近的研究揭示了XXZ链的静态关联函数的许多数学结构。在这里,我们使用这些研究的结果,以制定明确的例子,短距离关联函数的无限链。我们计算两点函数范围超过2,3和4个晶格位置的温度和磁场的函数为各种各向异性的无质量制度$- 1 < Δ< 1$。结果表明,新的公式是数值有效的,并允许我们获得的相关函数在整个参数范围内的任意精度。

英文摘要:

Recent studies have revealed much of the mathematical structure of the static correlation functions of the XXZ chain. Here we use the results of those studies in order to work out explicit examples of short-distance correlation functions in the infinite chain. We compute two-point functions ranging over 2, 3 and 4 lattice sites as functions of the temperature and the magnetic field for various anisotropies in the massless regime $- 1 < Δ< 1$. It turns out that the new formulae are numerically efficient and allow us to obtain the correlations functions over the full parameter range with arbitrary precision.

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。

↑