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Cornering Quantum Gravity

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arxiv 2307.08460 v2 pith:ZGSLS2H3 submitted 2023-07-17 hep-th gr-qcmath-phmath.MP

Luca Ciambelli , Alessandra D'Alise , Vittorio D'Esposito , Dušan {DJ}or{j̣evic , Diego Fernández-Silvestre , Ludovic Varrin This is my paper · ORCID
classification hep-thgr-qcmath-phmath.MP
keywords gravitysymmetriesasymptoticcornergroupnoetherphaseproposal
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After introducing the covariant phase space calculus, Noether's theorems are discussed, with particular emphasis on Noether's second theorem and the role of gauge symmetries. This is followed by the enunciation of the theory of asymptotic symmetries, and later its application to gravity. Specifically, we review how the BMS group arises as the asymptotic symmetry group of gravity at null infinity. Symmetries are so powerful and constraining that memory effects and soft theorems can be derived from them. The lectures end with more recent developments in the field: the corner proposal as a unified paradigm for symmetries in gravity, the extended phase space as a resolution to the problem of charge integrability, and eventually the implications of the corner proposal on quantum gravity.

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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. From the Corner Proposal to the Area Law

    hep-th 2025-10 reject novelty 6.0 of 10

    For spherically symmetric gravity, the entanglement entropy of 'classical' quantum-corner coherent states scales with horizon area — but the Bekenstein–Hawking coefficient 1/4 is fixed by hand-picked central charges, ...

  2. Entanglement Entropy of Quantum Corners

    hep-th 2025-07 conditional novelty 6.0 of 10

    For a two-dimensional corner symmetry algebra, coherent corner states give an entanglement entropy that scales with the area when mapped to near-extremal Reissner-Nordström black holes.

  3. Field-dependent diffeomorphisms and the transformation of surface charges between gauges

    hep-th 2024-12 conditional novelty 6.0 of 10

    The Weyl charge in (A)dS3 gravity is kinematical: it can be toggled on or off by a field-dependent diffeomorphism between Bondi-Sachs and Fefferman-Graham gauges.

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