Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Victor Godet"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 1, Pp 1-45 (2024)
Abstract We obtain solutions of the Wheeler-DeWitt equation with positive cosmological constant for a closed universe in the large-volume limit. We argue that this space of solutions provides a complete basis for the Hilbert space of quantum gravity
Externí odkaz:
https://doaj.org/article/fc0fad45cf6244d986915b66ef34abbb
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-46 (2023)
Abstract We study the natural norm on the space of solutions to the Wheeler-DeWitt equation in an asymptotically de Sitter spacetime. We propose that the norm is obtained by integrating the squared wavefunctional over field configurations and dividin
Externí odkaz:
https://doaj.org/article/8d541fb2741e4b4f94009b6e0dce02c1
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-89 (2023)
Abstract Driven quantum systems exhibit a large variety of interesting and sometimes exotic phenomena. Of particular interest are driven conformal field theories (CFTs) which describe quantum many-body systems at criticality. In this paper, we develo
Externí odkaz:
https://doaj.org/article/f9ddf3b97676423393d1ee4d312a3e70
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 8, Pp 1-64 (2022)
Abstract We compute the logarithmic correction to the entropy of asymptotically AdS4 black holes in minimal N $$ \mathcal{N} $$ = 2 gauged supergravity. We show that for extremal black holes the logarithmic correction computed in the near horizon geo
Externí odkaz:
https://doaj.org/article/c666c0d3109249a0a8990c16f84d633d
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 3, Pp 1-57 (2022)
Abstract In a theory of quantum gravity, states can be represented as wavefunctionals that assign an amplitude to a given configuration of matter fields and the metric on a spatial slice. These wavefunctionals must obey a set of constraints as a cons
Externí odkaz:
https://doaj.org/article/5ba09d39f7b845b3b225398edb85624c
Autor:
Victor Godet, Charles Marteau
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-52 (2021)
Abstract We study CGHS ̂ $$ \hat{\mathrm{CGHS}} $$ gravity, a variant of the matterless Callan-Giddings-Harvey-Strominger model. We show that it describes a universal sector of the near horizon perturbations of non-extremal black holes in higher dim
Externí odkaz:
https://doaj.org/article/d69ede52eda6494e8b4caa78a72c1026
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 7, Pp 1-68 (2021)
Abstract We revisit the spectrum of linear axisymmetric gravitational perturbations of the (near-)extreme Kerr black hole. Our aim is to characterise those perturbations that are responsible for the deviations away from extremality, and to contrast t
Externí odkaz:
https://doaj.org/article/570bdffdf7854b68ae82e0a4194a1ed5
Autor:
Victor Godet, Charles Marteau
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 12, Pp 1-65 (2020)
Abstract We describe new boundary conditions for AdS2 in Jackiw-Teitelboim gravity. The asymptotic symmetry group is enhanced to Diff(S 1) ⋉ C ∞(S 1) whose breaking to SL(2, ℝ) × U(1) controls the near-AdS2 dynamics. The action reduces to a bo
Externí odkaz:
https://doaj.org/article/140797c71d7c40a5a5622dc9b56584f4
Autor:
Victor Godet, Charles Marteau
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 12, Pp 1-52 (2019)
Abstract We explore holographic entanglement entropy for Minkowski spacetime in three and four dimensions. Under some general assumptions on the putative holographic dual, the entanglement entropy associated to a special class of subregions can be co
Externí odkaz:
https://doaj.org/article/b674a1325d85446b9cccb8f68f0b360b
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 7, Pp 1-25 (2019)
Abstract We attempt to construct eternal traversable wormholes connecting two asymptotically AdS regions by introducing a static coupling between their dual CFTs. We prove that there are no semiclassical traversable wormholes with Poincaré invarianc
Externí odkaz:
https://doaj.org/article/ff8e86ee188646b4a79e7d488a4854fe