Cosmic Shells

Details Cosmic Shells Cosmic Shells

2001-12-29

arxiv.org/abs/gr-qc/0112079v1

Phys.Rev. D66 (2002) 104020

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

24 pages, 12 figures

Scientific paper

10.1103/PhysRevD.66.104020

When a potential for a scalar field has two local minima there arise spherical shell-type solutions of the classical field equations due to gravitational attraction. We establish such solutions numerically in a space which is asymptotically de Sitter. It generically arises when the energy scale characterizing the scalar field potential is much less than the Planck scale. It is shown that the mirror image of the shell appears in the other half of the Penrose diagram. The configuration is smooth everywhere with no physical singularity.

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