Results 31 to 40 of about 47,413 (209)
Resurgence of a de Sitter Glauber‐Sudarshan State: Nodal Diagrams and Borel Resummation
Fortschritte der Physik, Volume 71, Issue 12, December 2023., 2023 Abstract It is shown in this article that an explicit construction of a four‐dimensional de Sitter space may be performed using a diagrammatic approach via nodal diagrams emanating from the path integral representation of the Glauber‐Sudarshan state. Sum of these diagrams typically leads to an asymptotic series of Gevrey kind which can then be Borel ...
Suddhasattwa Brahma +6 more
wiley +1 more source
Consistent truncations to 3-dimensional supergravity
Journal of High Energy Physics, 2022 We show how to construct consistent truncations of 10-/11-dimensional supergravity to 3-dimensional gauged supergravity, preserving various amounts of supersymmetry. We show, that as in higher dimensions, consistent truncations can be defined in terms of
Michele Galli, Emanuel Malek
doaj +1 more source
Bumping into the Species Scale with the Scalar Potential
Fortschritte der Physik, Volume 71, Issue 10-11, November 2023., 2023 Abstract As a quantum gravity cut‐off, the species scale Λs$\Lambda _s$ gets naturally compared to the energy scale of a scalar potential V in an EFT. In this note, the species scale, its rate |∇Λs|/Λs$|\nabla \Lambda _s|/\Lambda _s$ and their field dependence, to those of a scalar potential is compared.
David Andriot
wiley +1 more source
Black hole chemistry, the cosmological constant and the embedding tensor
Journal of High Energy Physics, 2022 We study black-hole thermodynamics in theories that contain dimensionful constants such as the cosmological constant or coupling constants in Wald’s formalism.
Patrick Meessen +2 more
doaj +1 more source
Gravitational Topological Quantum Field Theory Versus N = 2 D = 8 Supergravity and its lift to N = 1 D = 11 Supergravity [PDF]
, 2003 In a previous work, it was shown that the 8-dimensional topological quantum field theory for a metric and a Kalb-Ramond 2-form gauge field determines N = 1 D = 8 supergravity.
A. Salam +13 more
core +4 more sources
On Asymmetric Orbifolds and the D=5 No-modulus Supergravity [PDF]
Phys.Lett. B523 (2001) 351-356, 2001 We examine whether any type II asymmetric orbifolds have the same massless spectrum as the dimensional reduction of D=5 simple supergravity, which, besides the eleven-dimensional supergravity, is the only known supergravity above four dimensions with no moduli.
arxiv +1 more source
Generalised U-dual solutions via ISO(7) gauged supergravity [PDF]
, 2022 We study a solution generating technique in supergravity which can be viewed as a generalised version of U-duality, taking solutions of type IIA supergravity on a 6-sphere with RR flux to new solutions of 11-dimensional supergravity. The new solutions are characterised by an underlying 6-algebra structure.
arxiv +1 more source
Journal of High Energy Physics, 2022 Multi-parametric and analytic families of four-dimensional AdS3 × ℝ (Janus) and AdS3 × ℝ+ (Hades) solutions are constructed in the SO(8) gauged supergravity that arises from the consistent reduction of eleven-dimensional supergravity on S7 .
Andrés Anabalón +2 more
doaj +1 more source
Higher-dimensional resolution of dilatonic black hole singularities [PDF]
, 1994 We show that the four-dimensional extreme dilaton black hole with dilaton coupling constant $a= \sqrt{p/(p+2)}$ can be interpreted as a {\it completely non-singular}, non-dilatonic, black $p$-brane in $(4+p)$ dimensions provided that $p$ is {\it odd ...
G W Gibbons +7 more
core +3 more sources