Gauge symmetry from decoupling

• Verfasst von: Wetterich, Christof [VerfasserIn]
• Titel: Gauge symmetry from decoupling
• Verf.angabe: C. Wetterich
• Jahr: 2017
• Jahr des Originals: 2016
• Umfang: 18 S.
• Fussnoten: Published online: 4 Aug 2016 ; Gesehen am 25.07.2017
• Titel Quelle: Enthalten in: De.arxiv.org
• Ort Quelle: [S.l.] : Arxiv.org, 1991
• Jahr Quelle: 2017
• Band/Heft Quelle: (2017) Artikel-Nummer 1608.01515, 18 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: constraint: nonlinear
• Sach-SW: decoupling
• Sach-SW: effective action
• Sach-SW: field theory
• Sach-SW: gauge field theory: Yang-Mills
• Sach-SW: quantum gravity
• Sach-SW: renormalization
• Sach-SW: symmetry: gauge
• K10plus-PPN: 1561164593

Abstract

Gauge symmetries emerge from a redundant description of the effective action for light degrees of freedom after the decoupling of heavy modes. This redundant description avoids the use of explicit constraints in configuration space. For non-linear constraints the gauge symmetries are non-linear. In a quantum field theory setting the gauge symmetries are local and can describe Yang-Mills theories or quantum gravity. We formulate gauge invariant fields that correspond to the non-linear light degrees of freedom. In the context of functional renormalization gauge symmetries can emerge if the flow generates or preserves large mass-like terms for the heavy degrees of freedom. They correspond to a particular form of gauge fixing terms in quantum field theories.