Geodesic evolution and nucleation of a de Sitter brane

2005/09/16 by Aharon Davidson, David Karasik, Yoav Lederer · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #gr-qc

paper · pdf · doi:10.1103/physrevd.72.064011

published as Phys.Rev.D72:064011,2005 · 5 PRD pages, 4 eps figures

openalex publication_date 2005/09/16 · arxiv created 2005/09/30 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Within the framework of geodesic brane gravity, the deviation from general relativity is parametrized by the conserved bulk energy. The corresponding geodesic evolution/nucleation of a de Sitter brane is shown to be exclusively driven by a double-well Higgs potential, rather than by a plain cosmological constant. The (hairy) horizon serves then as the locus of unbroken Z₂ symmetry. The quartic structure of the scalar potential, singled out on finiteness grounds of the total (including the dark component) energy density, chooses the Hartle-Hawking no-boundary proposal.

Citations

• Large Mass Hierarchy from a Small Extra Dimension

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