On the construction of QED using ERG
| dc.creator | Sonoda, Hidenori | |
| dc.date | 2007-03-19 | |
| dc.date | 2007-06-13 | |
| dc.date.accessioned | 2026-07-07T11:44:09Z | |
| dc.date.available | 2026-07-07T11:44:09Z | |
| dc.description | It has been known for some time that a smooth momentum cutoff is compatible with local gauge symmetries. In this paper we show concretely how to construct QED using the exact renormalization group (ERG). First, we give a new derivation of the Ward identity for the Wilson action using the technique of composite operators. Second, parameterizing the theory by its asymptotic behavior for a large cutoff, we show how to fine-tune the parameters to satisfy the identity. Third, we recast the identity as invariance of the Wilson action under a non-linear BRST transformation. | |
| dc.description | 18 pages, LaTeX2e; added appendix A to improve sects. 2 and 4; added ref. 12 | |
| dc.identifier | https://arxiv.org/abs/hep-th/0703167 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0703167 | |
| dc.identifier | J.Phys.A40:9675-9690,2007 | |
| dc.identifier | doi:10.1088/1751-8113/40/31/034 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/201502 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | On the construction of QED using ERG | |
| dc.type | text |