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Asymptotically flat spacetimes with BMS$_3$ symmetry

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arxiv 1705.06217 v1 pith:7CNZ2H32 submitted 2017-05-17 hep-th gr-qc

Geoffrey Compère , Adrien Fiorucci This is my paper · ORCID
classification hep-thgr-qc
keywords groupnullasymptoticallybulkfieldsflatinfinityphase
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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.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Soft gravitons in three dimensions

    hep-th 2024-11 conditional novelty 7.0 of 10

    Three-dimensional flat-space gravity, despite having no propagating gravitons, exhibits an infrared triangle: a soft graviton theorem, BMS3 asymptotic symmetries, and gravitational memory effects, all equivalent throu...

  2. Source and Response Soft Charges for Maxwell Theory on $AdS_d$

    hep-th 2019-08 conditional novelty 7.0 of 10

    Maxwell theory on AdS_d has two boundary gauge symmetry sectors, source and response, whose soft charges obey an infinite-dimensional Heisenberg algebra; only the source sector survives the flat-space limit.

  3. Carrollian Perspective on Celestial Holography

    hep-th 2022-02 unverdicted novelty 6.0 of 10

    A 3d sourced conformal Carrollian field theory is proposed to holographically capture 4d flat gravity kinematics, with Ward identities matching 2d celestial CFT after relating operators.

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