Renormalization of Higher Currents of the Sine-Gordon Model in pAQFT

IF 1.4 3区 物理与天体物理 Q2 PHYSICS, MATHEMATICAL Annales Henri Poincaré Pub Date : 2024-07-12 DOI:10.1007/s00023-024-01468-5
Fabrizio Zanello
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Abstract

In this paper, we show that the higher currents of the sine-Gordon model are super-renormalizable by power counting in the framework of pAQFT. First we obtain closed recursive formulas for the higher currents in the classical theory and introduce a suitable notion of degree for their components. We then move to the pAQFT setting, and by means of some technical results, we compute explicit formulas for the unrenormalized interacting currents. Finally, we perform what we call the piecewise renormalization of the interacting higher currents, showing that the renormalization process involves a number of steps which is bounded by the degree of the classical conserved currents.

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pAQFT 中辛-戈登模型高次电流的重正化
在本文中,我们证明了正弦-戈登模型的高次电流在 pAQFT 框架内通过幂级数可超正则化。首先,我们得到了经典理论中高次电流的封闭递推公式,并为它们的分量引入了一个合适的度数概念。然后,我们转到 pAQFT 环境,通过一些技术结果,计算出未重正化的相互作用电流的明确公式。最后,我们对相互作用高次电流进行所谓的片式重正化,证明重正化过程涉及的步骤数与经典守恒电流的度数成正比。
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来源期刊
Annales Henri Poincaré
Annales Henri Poincaré 物理-物理:粒子与场物理
CiteScore
3.00
自引率
6.70%
发文量
108
审稿时长
6-12 weeks
期刊介绍: The two journals Annales de l''Institut Henri Poincaré, physique théorique and Helvetica Physical Acta merged into a single new journal under the name Annales Henri Poincaré - A Journal of Theoretical and Mathematical Physics edited jointly by the Institut Henri Poincaré and by the Swiss Physical Society. The goal of the journal is to serve the international scientific community in theoretical and mathematical physics by collecting and publishing original research papers meeting the highest professional standards in the field. The emphasis will be on analytical theoretical and mathematical physics in a broad sense.
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