Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000stin...0176241m&link_type=abstract
Technical Report, PB2001-105986; IHES/P/00/71
Astronomy and Astrophysics
Astronomy
Black Holes (Astronomy), Cosmology, Gravitational Collapse, String Theory, Universe, Quantum Theory, Gravitation
Scientific paper
Recent work has proposed the principle of 'asymptotic past trivality' to characterize the initial state in the pre-big bang scenario of string cosmology, that it is a generic perturbative solution of the low-energy effective action. Among the more generic sets of solutions which is simple enough to investigate thoroughly, yet complex enough to exhibit interesting behavior, is the gravity-dilation system in spherical symmetry. Since, in the Einstein frame, this system reduces to a massless minimally coupled scalar, which has been the target of a large body of previous investigation, the authors will draw on this and interpret it in the cosmological context. Since the scenario necessarily involves the transition from weak field initial data into the strong field regime, gravitational collapse, the authors have made numerical computations to answer some of the questions raised on the road to the proposal that the 'pre-big bang is as generic as gravitational collapse'.
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