G1 Cosmologies with Gravitational and Scalar Waves

Abstract

I present here a new algorithm to generate families of inhomogeneous massless scalar field cosmologies. New spacetimes, having a single isometry, are generated by breaking the homogeneity of massless scalar field $G_2$ models along one direction. As an illustration of the technique I construct cosmological models which in their late time limit represent perturbations in the form of gravitational and scalar waves propagating on a non-static inhomogeneous background. Several features of the obtained metrics are discussed, such as their early and late time limits, structure of singularities and physical interpretation.

24 pages, 2 figures

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Cited by in corpus (7)

• Cosmology with exponential potentials
• Separable Brane Cosmologies in Heterotic M-Theory
• Inhomogeneous Einstein-Rosen String Cosmology
• Exact inhomogeneous Einstein-Maxwell-Dilaton cosmologies
• Solution generating in scalar-tensor theories with a massless scalar field and stiff perfect fluid as a source
• Dilatonic Domain Walls and Curved Intersecting Branes
• Asymptotic singular behaviour of inhomogeneous cosmologies in Einstein-Maxwell-dilaton-axion theory