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首页> 外文期刊>Physical review >Exact prefactors in static and dynamic correlation functions of one-dimensional quantum integrable models: Applications to the Calogero-Sutherland, Lieb-Liniger, and XXZ models
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Exact prefactors in static and dynamic correlation functions of one-dimensional quantum integrable models: Applications to the Calogero-Sutherland, Lieb-Liniger, and XXZ models

机译:一维量子可积模型的静态和动态相关函数中的精确因子:在Calogero-Sutherland,Lieb-Liniger和XXZ模型中的应用

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摘要

In this paper, we demonstrate a recently developed technique which addresses the problem of obtaining nonuniversal prefactors of the correlation functions of one-dimensional (1D) systems at zero temperature. Our approach combines the effective field theory description of generic 1D quantum liquids with the finite-size scaling of form factors (matrix elements) which are obtained using microscopic techniques developed in the context of integrable models. We thus establish exact analytic forms for the prefactors of the long-distance behavior of equal-time correlation functions as well as prefactors of singularities of dynamic response functions. In this paper, our focus is on three specific integrable models: the Calogero-Sutherland, Lieb-Liniger, and XXZ models.
机译:在本文中,我们演示了一种最新开发的技术,该技术解决了在零温度下获得一维(1D)系统相关函数的非通用前置因子的问题。我们的方法将通用的一维量子液体的有效场论描述与形状因数(矩阵元素)的有限尺寸缩放相结合,形状因数是使用在可积分模型的上下文中开发的微观技术获得的。因此,我们为等时相关函数的长距离行为的前置因子以及动态响应函数的奇异性的前置因子建立了精确的解析形式。在本文中,我们的重点是三个特定的可集成模型:Calogero-Sutherland,Lieb-Liniger和XXZ模型。

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