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arXiv 2003.00373hep-th
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泛函非微扰方法中的Wilson重整化群

Wilsonian Renormalization Group In The Functional Nonperturbative Approach

Gian Paolo Vacca

摘要:

我们认为一个给定的威尔逊RG流,这必须涉及到一个特定的粗粒化过程,和一个无限的家庭(UV截止)规模依赖字段重新定义之间的函数关系。在这个框架内,可以定义一个家庭的威尔逊适当的时间精确RG方程相关联的任意调节器功能。这些RG流计划的伊辛普适性类在三维的衍生扩展的新的应用程序进行了说明。

英文摘要:

We consider a functional relation between a given Wilsonian RG flow, which has to be related to a specific coarse-graining procedure, and an infinite family of (UV cutoff) scale dependent field redefinitions. Within this framework one can define a family of Wilsonian proper-time exact RG equations associated to an arbitrary regulator function. New applications of these RG flow schemes to the Ising Universality class in three dimensions in the derivative expansion are shortly illustrated.

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