BMS symmetry in gravity: Front form versus Instant form
| Autor: | Ananth, Sudarshan, Majumdar, Sucheta |
|---|---|
| Přispěvatelé: | Laboratoire de Physique de l'ENS Lyon (Phys-ENS), École normale supérieure de Lyon (ENS de Lyon)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
High Energy Physics - Theory
Poincare High Energy Physics - Theory (hep-th) gravitation [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th] transformation gauge diffeomorphism general relativity [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc] FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) General Relativity and Quantum Cosmology |
| Popis: | In General Relativity, the allowed set of diffeomorphisms or gauge transformations at asymptotic infinity forms the BMS group, an infinite-dimensional extension of the Poincar\'e group. We focus on the structure of the BMS group in two distinct forms of Hamiltonian dynamics - the instant and front forms. Both similarities and differences in these two forms are examined while emphasising the role of non-covariant approaches to symmetries in gravity. Comment: 9 pages and 3 figures, Honorable Mention - Gravity Research Foundation 2023 |
| Databáze: | OpenAIRE |
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