Initial conditions problem in cosmological inflation revisited
David Garfinkle, Anna Ijjas, Paul J. Steinhardt
Abstract
We present first results from a novel numerical relativity code based on a tetrad formulation of the Einstein-scalar field equations combined with recently introduced gauge/frame invariant diagnostics. The results provide support for the argument that inflation does not solve the homogeneity and isotropy problem beginning from generic initial conditions following a big bang.
Topics & Concepts
PhysicsTetradGeneral relativityTheoretical physicsEinsteinNumerical relativityFriedmann–Lemaître–Robertson–Walker metricIsotropyInflation (cosmology)Scalar fieldHomogeneity (statistics)Mathematical physicsField equationScalar (mathematics)Classical mechanicsCosmologyAstrophysicsQuantum mechanicsGeometryStatisticsMathematicsCosmology and Gravitation TheoriesBlack Holes and Theoretical PhysicsGeophysics and Gravity Measurements