Inhomogeneous Einstein-Rosen String Cosmology

Details Inhomogeneous Einstein-Rosen String Cosmology Inhomogeneous Einstein-Rosen String Cosmology

1999-01-22

arxiv.org/abs/gr-qc/9901062v3

Phys.Rev. D60 (1999) 043503

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Minor extension of concluding section; 18 pages, to appear in Phys.Rev. D

Scientific paper

10.1103/PhysRevD.60.043503

Families of anisotropic and inhomogeneous string cosmologies containing non-trivial dilaton and axion fields are derived by applying the global symmetries of the string effective action to a generalized Einstein-Rosen metric. The models exhibit a two-dimensional group of Abelian isometries. In particular, two classes of exact solutions are found that represent inhomogeneous generalizations of the Bianchi type VI_h cosmology. The asymptotic behaviour of the solutions is investigated and further applications are briefly discussed.

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