Conformal anomaly from gauge fields without gauge fixing

• Verfasst von: Falls, Kevin [VerfasserIn]
• Verfasst von: Morris, Tim R. [VerfasserIn]
• Titel: Conformal anomaly from gauge fields without gauge fixing
• Verf.angabe: Kevin Falls and Tim R. Morris
• E-Jahr: 2018
• Jahr: 19 March 2018
• Umfang: 12 S.
• Fussnoten: Gesehen am 20.04.2020
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2018
• Band/Heft Quelle: 97(2018,6) Artikel-Nummer 065013, 12 Seiten
• ISSN Quelle: 2470-0029
• DOI: doi:10.1103/PhysRevD.97.065013
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1694965635

Abstract

We show how the Weyl anomaly generated by gauge fields, can be computed from manifestly gauge invariant and diffeomorphism invariant exact renormalization group equations, without having to fix the gauge at any stage. Regularization is provided by covariant higher derivatives and by embedding the Maxwell field into a spontaneously broken U(1|1) supergauge theory. We first provide a realization that leaves behind two versions of the original U(1) gauge field, and then construct a manifestly U(1|1) supergauge invariant flow equation which leaves behind only the original Maxwell field in the spontaneously broken regime.