Two simple photon gauges in inflation

Abstract Photon propagators for power-law inflation are constructed in two one-parameter families of noncovariant gauges, in an arbitrary number of spacetime dimensions. In both gauges photon propagators take relatively simple forms expressed in terms of scalar propagators and their derivatives. The...

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Main Author: Dražen Glavan
Format: Article
Language:English
Published: SpringerOpen 2025-06-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP06(2025)162
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author Dražen Glavan
author_facet Dražen Glavan
author_sort Dražen Glavan
collection DOAJ
description Abstract Photon propagators for power-law inflation are constructed in two one-parameter families of noncovariant gauges, in an arbitrary number of spacetime dimensions. In both gauges photon propagators take relatively simple forms expressed in terms of scalar propagators and their derivatives. These are considerably simpler compared to their general covariant gauge counterpart. This makes feasible performing dimensionally regulated loop computations involving massless vector fields in inflation.
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institution Kabale University
issn 1029-8479
language English
publishDate 2025-06-01
publisher SpringerOpen
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series Journal of High Energy Physics
spelling doaj-art-cd9eb9f2cfbf47b9befcb0c8fc2b4d792025-08-20T03:42:45ZengSpringerOpenJournal of High Energy Physics1029-84792025-06-012025614210.1007/JHEP06(2025)162Two simple photon gauges in inflationDražen Glavan0CEICO, FZU — Institute of Physics of the Czech Academy of SciencesAbstract Photon propagators for power-law inflation are constructed in two one-parameter families of noncovariant gauges, in an arbitrary number of spacetime dimensions. In both gauges photon propagators take relatively simple forms expressed in terms of scalar propagators and their derivatives. These are considerably simpler compared to their general covariant gauge counterpart. This makes feasible performing dimensionally regulated loop computations involving massless vector fields in inflation.https://doi.org/10.1007/JHEP06(2025)162Early Universe Particle PhysicsGauge SymmetryNon-Equilibrium Field TheoryCosmological models
spellingShingle Dražen Glavan
Two simple photon gauges in inflation
Journal of High Energy Physics
Early Universe Particle Physics
Gauge Symmetry
Non-Equilibrium Field Theory
Cosmological models
title Two simple photon gauges in inflation
title_full Two simple photon gauges in inflation
title_fullStr Two simple photon gauges in inflation
title_full_unstemmed Two simple photon gauges in inflation
title_short Two simple photon gauges in inflation
title_sort two simple photon gauges in inflation
topic Early Universe Particle Physics
Gauge Symmetry
Non-Equilibrium Field Theory
Cosmological models
url https://doi.org/10.1007/JHEP06(2025)162
work_keys_str_mv AT drazenglavan twosimplephotongaugesininflation