Gauge Invariant Cutoff QED
arXiv:1108.3215 · doi:10.1088/0031-8949/87/03/035101
Abstract
A hidden generalized gauge symmetry of a cutoff QED is used to show the renormalizability of QED. In particular, it is shown that corresponding Ward identities are valid all along the renormalization group flow. The exact Renormalization Group flow equation corresponding to the effective action of a cutoff lambda phi^4 theory is also derived. Generalization to any gauge group is indicated.
V1: 18 pages, 2 figures; V2: Discussions improved. Version accepted for publication in Physica Scripta
References in corpus (7)
- Translation Invariance, Commutation Relations and Ultraviolet/Infrared Mixing
- A Manifestly Gauge Invariant and Universal Calculus for SU(N) Yang-Mills
- Curing the UV/IR mixing for field theories with translation-invariant products
- On the construction of QED using ERG
- Gauge and Poincare' Invariant Regularization and Hopf Symmetries
- Translational-invariant noncommutative gauge theory
- Translation-Invariant Noncommutative Renormalization
Cited by in corpus (8)
- BRST invariant RG flows
- Functional flows in QED and the modified Ward-Takahashi identity
- Gauge and Poincare' Invariant Regularization and Hopf Symmetries
- Cutoff Function in Holographic RG Flow
- Background Effective Action with Nonlinear Massive Gauge Fixing
- Commutative deformations of general relativity: nonlocality, causality, and dark matter
- Deformations of the Canonical Commutation Relations and Metric Structures
- Green's Functions for Translation Invariant Star Products