1.3k citations
- Universidad Autónoma de MadridES24 papers
- Université de Bretagne SudFR21 papers
- Max Planck Institute for Gravitational PhysicsDE19 papers
- University of Wisconsin–MilwaukeeUS15 papers
- Centre National de la Recherche ScientifiqueFR14 papers
- Pennsylvania State UniversityUS14 papers
- Tsinghua UniversityCN14 papers
- The University of Texas at AustinUS13 papers
- University of MichiganUS13 papers
- California Institute of TechnologyUS12 papers
- Goddard Space Flight CenterUS12 papers
- Instituto de Física TeóricaES12 papers
39 papers · 1 filter
Symmetry reduction of gravitational Lagrangians
Guillermo Frausto, Ivan Kolář, Tomáš Málek +1
We analyze all possible symmetry reductions of Lagrangians that yield fully equivalent field equations for any 4-dimensional metric theory of gravity. Specifically, we present a co…
Geometry from geodesics: fine-tuning Ehlers, Pirani, and Schild
James T. Wheeler
Ehlers, Pirani, and Schild argued that measurements of null and timelike geodesics yield Weyl and projective connections, respectively, with compatibility in the lightlike limit gi…
Blandford-Znajek jets in MOdified Gravity
Filippo Camilloni, Troels Harmark, Marta Orselli +1
General relativity (GR) will be imminently challenged by upcoming experiments in the strong gravity regime, including those testing the energy extraction mechanisms for black holes…
A New Non-Inheriting Homogeneous Solution of the Einstein-Maxwell Equations with Cosmological Term
I. M. Anderson, C. G. Torre
We find a new homogeneous solution to the Einstein-Maxwell equations with a cosmological term. The spacetime manifold is . The spacetime metric admits a simply transi…
Emergent Black Hole Thermodynamics from Monodromy
Alex Chanson, Jacob Ciafre, Maria J. Rodriguez
We argue that the equations of motion of quantum field theories in curved backgrounds encode new fundamental black hole thermodynamic relations. We define new entropy variation rel…
Spacetime Groups
Ian Anderson, Charles Torre
A spacetime group is a connected 4-dimensional Lie group G endowed with a left invariant Lorentz metric h and such that the connected component of the isometry group of h is G itse…