Inhomogeneous cosmological models in scalar-tensor theories

Details Inhomogeneous cosmological models in scalar-tensor theories Inhomogeneous cosmological models in scalar-tensor theories

Jun 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999el.....46..832b&link_type=abstract

Europhysics Letters, Volume 46, Issue 6, pp. 832-837 (1999).

Physics

2

Scientific paper

Exact self-similar spatially inhomogeneous G2 cosmological models are found in a class of scalar-tensor theories of gravity by exploiting the formal equivalence of this class of theories (under a conformal transformation and field redefinition) to general relativity minimally coupled to a scalar field with an exponential potential. We argue that these exact self-similar solutions may play an important role in describing the asymptotic behaviour (both at early and at late times) of more general scalar-tensor G2 models. The possible isotropization and the homogenization of these models is briefy discussed.

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