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Massless scalars and higher-spin BMS in any dimension
- Source :
- Journal of High Energy Physics, Vol 2022, Iss 11, Pp 1-57 (2022)
- Publication Year :
- 2022
- Publisher :
- SpringerOpen, 2022.
-
Abstract
- Abstract Starting from the asymptotic kinematics of massless scalar fields near null infinity in any spacetime dimension, we build two higher-spin extensions of the Carrollian definition of the BMS group and its generalisations. The first extension exhibits conformal properties reminiscent of the singleton in Anti-de Sitter space. The second acts on the space of radiative solutions of the d’Alembert equation, i.e. on Sachs’s representation of BMS, which we relate to the scalar massless Poincaré representation and extend to any Carrollian manifold. The corresponding enveloping algebra is a higher-spin extension of BMS that can be interpreted as the asymptotic symmetry of a putative exotic higher-spin gravity theory around Minkowski spacetime. Along the way, we provide a pedagogical introduction to Carrollian geometry and its relation to BMS.
Details
- Language :
- English
- ISSN :
- 10298479
- Volume :
- 2022
- Issue :
- 11
- Database :
- Directory of Open Access Journals
- Journal :
- Journal of High Energy Physics
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.52a8cf5388b149889b8db7a08cbfffd4
- Document Type :
- article
- Full Text :
- https://doi.org/10.1007/JHEP11(2022)022