A cigar-like universe

2003/09/29 by B. de Carlos, J. M. Moreno · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #hep-th

paper · pdf · doi:10.1088/1126-6708/2003/11/040

published as JHEP 0311 (2003) 040 · 17 pages, 8 figures

arxiv created 2003/09/29 · openalex publication_date 2003/11/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We study the localization of gravity on a string-like topological defect within a 6-dimensional space-time. Assuming zero cosmological constant we find complete numerical solutions to a set of first-order, Bogomol'nyi-Prasad-Sommeferld (BPS)-like, equations for the metric and the scalar field, where the dynamics of the latter are dictated by a supergravity-type potential. Our axially symmetric solutions have no deficit angle and factorize as AdS₅ × S₁ far from the core. They are regular everywhere, providing complete smooth cigar-like geometries. The total energy of these configurations depends only on the boundary conditions for the warp factor and it is shown to vanish.

Citations

• Localizing Gravity on a Stringlike Defect in Six Dimensions
• Sidestepping the Cosmological Constant with Football-Shaped Extra Dimensions
• Living inside a hedgehog: higher-dimensional solutions that localize gravity
• Large Mass Hierarchy from a Small Extra Dimension
• Dirichlet Branes and Ramond-Ramond Charges
• Bosonic fields in the stringlike defect model

Cited by

• On braneworld cosmologies from six dimensions, and absence thereof