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arXiv 1607.01922hep-th
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共形微扰理论中的对数增强及其实时解释

Logarithmic enhancements in conformal perturbation theory and their real time interpretation

David Berenstein, Alexandra Miller

摘要:

本文研究了共形微扰理论中关联函数对首阶的各种修正,包括圆柱上的修正和平面上的修正。如果我们给扰动一个与位置有关的标度分布,许多柱体上的问题在数学上等价于平面上的问题。然后,要完成的积分类似于在轮廓中心处附加一个插入的关联函数的研究。我们将主要感兴趣的发散结构时,这些修正计算的维正则化。特别是,我们表明,对数发散(增强),在这些情况下出现在平面上可以理解的共振行为在时间依赖的微扰理论,状态之间的过渡,是由振荡扰动引起的圆柱体。

英文摘要:

We study various corrections of correlation functions to leading order in conformal perturbation theory, both on the cylinder and on the plane. Many problems on the cylinder are mathematically equivalent to those in the plane if we give the perturbations a position dependent scaling profile. The integrals to be done are then similar to the study of correlation functions with one additional insertion at the center of the profile. We will be primarily interested in the divergence structure of these corrections when computed in dimensional regularization. In particular, we show that the logarithmic divergences (enhancements) that show up in the plane under these circumstances can be understood in terms of resonant behavior in time dependent perturbation theory, for a transition between states that is induced by an oscillatory perturbation on the cylinder.

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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