Zobrazeno 1 - 10
of 153
pro vyhledávání: '"Laurent Freidel"'
Autor:
Laurent Freidel, Puttarak Jai-akson
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-43 (2024)
Abstract The membrane paradigm displays underlying connections between a timelike stretched horizon and a null boundary (such as a black hole horizon) and bridges the gravitational dynamics of the horizon with fluid dynamics. In this work, we revisit
Externí odkaz:
https://doaj.org/article/d9e6d8a05a44439fb793245c578fadee
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 2, Pp 1-53 (2024)
Abstract Celestial holography provides a reformulation of scattering amplitudes in four dimensional asymptotically flat spacetimes in terms of conformal correlators of operators on the two dimensional celestial sphere in a basis of boost eigenstates.
Externí odkaz:
https://doaj.org/article/2b5069db114f45688c7a0c2f552e832f
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-45 (2024)
Abstract We initiate a study of gravity focusing on generic null hypersurfaces, non-perturbatively in the Newton coupling. We present an off-shell account of the extended phase space of the theory, which includes the expected spin-2 data as well as s
Externí odkaz:
https://doaj.org/article/eaaf60b2be5f41149a71b7d05b27e71a
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-45 (2023)
Abstract Similar to gravity, an infinite tower of symmetries generated by higher-spin charges has been identified in Yang-Mills theory by studying collinear limits or celestial operator products of gluons. This work aims to recover this loop symmetry
Externí odkaz:
https://doaj.org/article/e3c93640a4d641dfbb59e9d48893f298
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-95 (2023)
Abstract Gravitational subsystems with boundaries carry the action of an infinite-dimensional symmetry algebra, with potentially profound implications for the quantum theory of gravity. We initiate an investigation into the quantization of this corne
Externí odkaz:
https://doaj.org/article/9dd8dddd4f1f4604af486bc29302e639
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 5, Pp 1-38 (2022)
Abstract We identify in Einstein gravity an asymptotic spin-2 charge aspect whose conservation equation gives rise, after quantization, to the sub-subleading soft theorem. Our treatment reveals that this spin-2 charge generates a non-local spacetime
Externí odkaz:
https://doaj.org/article/0220f28a900d4e0699d531e27db89db3
Autor:
Laurent Freidel, Daniele Pranzetti
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 4, Pp 1-58 (2022)
Abstract We show that we can derive the asymptotic Einstein’s equations that arises at order 1/r in asymptotically flat gravity purely from symmetry considerations. This is achieved by studying the transformation properties of functionals of the me
Externí odkaz:
https://doaj.org/article/fdd4fda2162a44b5ad3f791c6dcb2ab4
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-63 (2021)
Abstract The phase space of general relativity in a finite subregion is characterized by edge modes localized at the codimension-2 boundary, transforming under an infinite-dimensional group of symmetries. The quantization of this symmetry algebra is
Externí odkaz:
https://doaj.org/article/dc0c8292d2bb4acca1ae8afdc884c121
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-38 (2021)
Abstract We develop the covariant phase space formalism allowing for non-vanishing flux, anomalies, and field dependence in the vector field generators. We construct a charge bracket that generalizes the one introduced by Barnich and Troessaert and i
Externí odkaz:
https://doaj.org/article/24bddf8a2dd746648d713e130fde88ae
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-65 (2021)
Abstract We propose an extension of the BMS group, which we refer to as Weyl BMS or BMSW for short, that includes super-translations, local Weyl rescalings and arbitrary diffeomorphisms of the 2d sphere metric. After generalizing the Barnich-Troessae
Externí odkaz:
https://doaj.org/article/dbdc136451ae42289d7d75975f39f379