BRST BMS4 Symmetry and its Cocycles from Horizontality Conditions - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of High Energy Physics Année : 2023

BRST BMS4 Symmetry and its Cocycles from Horizontality Conditions

Résumé

The BRST structure of the extended Bondi-Metzner-Sachs symmetry group of asymptotically flat manifolds is investigated using the recently introduced framework of the Beltrami field parametrization of four-dimensional metrics. The latter identifies geometrically the two physical degrees of freedom of the graviton as fundamental fields. The graded BRST BMS4 nilpotent differential operator relies on four horizontality conditions giving a Lagrangian reformulation of the asymptotic BMS4 symmetry. A series of cocycles is found which indicate the possibility of anomalies for three-dimensional Lagrangian theories to be built in the null boundaries of asymptotically flat spaces from the principle of BRST BMS4 invariance.

Dates et versions

hal-04093554 , version 1 (10-05-2023)

Identifiants

Citer

Laurent Baulieu, Tom Wetzstein. BRST BMS4 Symmetry and its Cocycles from Horizontality Conditions. Journal of High Energy Physics, 2023, 07, pp.130. ⟨10.1007/JHEP07(2023)130⟩. ⟨hal-04093554⟩
31 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More