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arXiv 2201.12180hep-thhep-phnucl-th
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局部QFT中的欧氏热关联函数

Euclidean thermal correlation functions in local QFT

Peter Lowdon

摘要:

本文概述了局域量子场论中有限温度下标量关联函数所满足的一般解析特征。我们证明,特别是地方的领域施加显着的限制的光谱结构的理论,这使得非微扰效应所经历的热粒子状态直接计算从欧几里德关联函数,避免了逆问题。

英文摘要:

In this work we outline the general analytic characteristics satisfied by scalar correlation functions at finite temperature in local quantum field theory. We demonstrate that the locality of the fields in particular imposes significant constraints on the spectral structure of the theory, and that this enables the non-perturbative effects experienced by thermal particle states to be directly calculated from Euclidean correlation functions, avoiding the inverse problem.

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