Gravitational radiation condition at infinity with a positive cosmological constant
Francisco Fernández-Álvarez, José M. M. Senovilla
Abstract
Gravitational waves have been directly detected and astronomical observations indicate that our Universe has a positive cosmological constant $\mathrm{\ensuremath{\Lambda}}$. Nevertheless, a theoretical gauge-invariant notion of gravitational waves arriving at infinity (escaping from the space-time) in the presence of a positive $\mathrm{\ensuremath{\Lambda}}$ has been elusive. We find the answer to this long-standing gravitational puzzle and present a geometric, gauge-invariant radiation condition at infinity.
Topics & Concepts
PhysicsGravitational waveCosmological constantInfinityGravitationLambdaGravitational constantMathematical physicsUniverseInvariant (physics)Theoretical physicsAstrophysicsClassical mechanicsQuantum mechanicsMathematical analysisMathematicsBlack Holes and Theoretical PhysicsCosmology and Gravitation TheoriesPulsars and Gravitational Waves Research