Geodesic evolution and nucleation of a de Sitter brane

被引：9

作者：

Davidson, A ^{[1
]}

Karasik, D ^{[1
]}

Lederer, Y ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel

来源：

PHYSICAL REVIEW D | 2005年 / 72卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.72.064011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 Z(2) 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.

引用

页数：5