On exact proper time Wilsonian RG flows

• Verfasst von: Bonanno, Alfio [VerfasserIn]
• Verfasst von: Lippoldt, Stefan [VerfasserIn]
• Verfasst von: Percacci, Roberto [VerfasserIn]
• Verfasst von: Vacca, Gian Paolo [VerfasserIn]
• Titel: On exact proper time Wilsonian RG flows
• Verf.angabe: Alfio Bonanno, Stefan Lippoldt, Roberto Percacci, Gian Paolo Vacca
• E-Jahr: 2020
• Jahr: [2020]
• Umfang: 9 S.
• Illustrationen: Diagramme
• Fussnoten: Gesehen am 14.04.2020
• Titel Quelle: Enthalten in: The European physical journal / C
• Ort Quelle: Berlin : Springer, 1998
• Jahr Quelle: 2020
• Band/Heft Quelle: 80(2020,3) Artikel-Nummer 249, Seite 1-9
• ISSN Quelle: 1434-6052
• DOI: doi:10.1140/epjc/s10052-020-7798-9
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1694468208

Abstract

We discuss the possibility to define exact RG equations for a UV regulated Wilsonian action based on a proper time (PT) regulator function. We start from a functional mapping which shows how each particular flow equation (and RG scheme) is associated to infinitely many scale dependent field redefinitions, which are related to specific coarse-graining procedures. On specializing to a sub-family of one parameter PT regulators we briefly analyze few results for the Ising Universality class in three dimensions, obtained within a second order truncation in the derivative expansion of the Wilsonian action.