Unimodular gauge in perturbative gravity and supergravity

Unimodular gauge in perturbative gravity and supergravity

This paper explains the Unimodular gauge fixing of gravity and supergravity in the framework of a perturbative BRST construction. The unphysical sector contains additional BRST-exact quartets to suppress possible ambiguities and impose both the Unimodular gauge fixing condition on the metric and a g...

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Main Author: Laurent Baulieu
Format: Article
Language:English
Published: Elsevier 2020-09-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269320303956
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spelling doaj-c938f9389bb7474da704cb16624dfc692020-11-25T03:57:33ZengElsevierPhysics Letters B0370-26932020-09-01808135591Unimodular gauge in perturbative gravity and supergravityLaurent Baulieu0LPTHE, Sorbonne Université, CNRS, 4 Place Jussieu, 75005 Paris, FranceThis paper explains the Unimodular gauge fixing of gravity and supergravity in the framework of a perturbative BRST construction. The unphysical sector contains additional BRST-exact quartets to suppress possible ambiguities and impose both the Unimodular gauge fixing condition on the metric and a gauge condition for the reparametrization symmetry of the unimodular part of the metric. The Unimodular gauge choice of the metric must be completed by a γ-Traceless gauge condition for the Rarita–Schwinger field in the case of supergravity. This gives an interesting new class of gauges for gravity and supergravity.http://www.sciencedirect.com/science/article/pii/S0370269320303956
collection DOAJ
language English
format Article
sources DOAJ
author Laurent Baulieu
spellingShingle Laurent Baulieu
Unimodular gauge in perturbative gravity and supergravity
Physics Letters B
author_facet Laurent Baulieu
author_sort Laurent Baulieu
title Unimodular gauge in perturbative gravity and supergravity
title_short Unimodular gauge in perturbative gravity and supergravity
title_full Unimodular gauge in perturbative gravity and supergravity
title_fullStr Unimodular gauge in perturbative gravity and supergravity
title_full_unstemmed Unimodular gauge in perturbative gravity and supergravity
title_sort unimodular gauge in perturbative gravity and supergravity
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2020-09-01
description This paper explains the Unimodular gauge fixing of gravity and supergravity in the framework of a perturbative BRST construction. The unphysical sector contains additional BRST-exact quartets to suppress possible ambiguities and impose both the Unimodular gauge fixing condition on the metric and a gauge condition for the reparametrization symmetry of the unimodular part of the metric. The Unimodular gauge choice of the metric must be completed by a γ-Traceless gauge condition for the Rarita–Schwinger field in the case of supergravity. This gives an interesting new class of gauges for gravity and supergravity.
url http://www.sciencedirect.com/science/article/pii/S0370269320303956
work_keys_str_mv AT laurentbaulieu unimodulargaugeinperturbativegravityandsupergravity
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