Asymptotically flat spacetimes with BMS 3 symmetry

2017/09/06 by Geoffrey Compère, Adrien Fiorucci
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Homotopy and Cohomology in Algebraic Topology #Noncommutative and Quantum Gravity Theories

paper · doi:10.1088/1361-6382/aa8aad

openalex created_date 2017/05/26 · openalex publication_date 2017/09/06 · openalex updated_date 2026/07/30

Abstract

Abstract We construct the phase space of 3-dimensional asymptotically flat spacetimes that forms the bulk metric representation of the BMS group consisting of both supertranslations and superrotations. The asymptotic symmetry group is a unique copy of the BMS group at both null infinities and spatial infinity. The BMS phase space obeys a notion of holographic causality and can be parametrized by boundary null fields. This automatically leads to the antipodal identification of bulk fields between past and future null infinity in the absence of a global conical defect.

Citations

• Gravitational waves in general relativity, VII. Waves from axi-symmetric isolated system
• Gravitational waves in general relativity VIII. Waves in asymptotically flat space-time

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