Inflationary Initial Conditions Consistent with Causality

Details Inflationary Initial Conditions Consistent with Causality Inflationary Initial Conditions Consistent with Causality

2000-10-24

arxiv.org/abs/hep-ph/0010280v3

Phys.Rev. D63 (2001) 063505

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 3 figures. Minor changes, matches version to appear in Physical Review D

Scientific paper

10.1103/PhysRevD.63.063505

The initial condition problem of inflation is examined from the perspective of both spacetime embedding and scalar field dynamics. The spacetime embedding problem is solved for arbitrary initial spatial curvature Omega, which generalizes previous works that primarily treat the flat case Omega=1. Scalar field dynamics that is consistent with the embedding constraints are examined, with the additional treatment of damping effects. The effects of inhomogeneities on the embedding problem also are considered. A category of initial conditions are identified that are not acausal and can develop into an inflationary regime.

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