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arXiv 1202.1190hep-th
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规范和Poincare不变正则化与Hopf对称性

Gauge and Poincare' Invariant Regularization and Hopf Symmetries

Fedele Lizzi, Patrizia Vitale

摘要:

我们考虑规范量子场论的正规化以下的修改的Polchinski证明的基础上引入一个截止函数。我们的工作与庞加莱不变变形的普通点式产品的领域介绍了Ardalan,Arfaei,Ghasemkhani和Sadooghi,并表明,它的产量,通过限制程序的截止函数,正则化的理论,保持所有的对称性在每个阶段。新的规范对称性产生了一个新的具有变形余结构的Hopf代数,它与标准的Hopf代数是不等价的。

英文摘要:

We consider the regularization of a gauge quantum field theory following a modification of the Polchinski proof based on the introduction of a cutoff function. We work with a Poincare' invariant deformation of the ordinary point-wise product of fields introduced by Ardalan, Arfaei, Ghasemkhani and Sadooghi, and show that it yields, through a limiting procedure of the cutoff functions, to a regularized theory, preserving all symmetries at every stage. The new gauge symmetry yields a new Hopf algebra with deformed co-structures, which is inequivalent to the standard one.

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