Shear-free rotating inflation

Details Shear-free rotating inflation Shear-free rotating inflation

2002-06-26

arxiv.org/abs/gr-qc/0206080v1

Phys.Rev. D66 (2002) 043518

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Revtex, 12 pages; to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.66.043518

We demonstrate the existence of shear-free cosmological models with rotation
and expansion which support the inflationary scenarios. The corresponding
metrics belong to the family of spatially homogeneous models with the geometry
of the closed universe (Bianchi type IX). We show that the global vorticity
does not prevent the inflation and even can accelerate it.

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