Gravitational field of vacuumless defects

Abstract

It has been recently shown that topological defects can arise in symmetry breaking models where the scalar field potential $V(\varphi )$ has no minima and is a monotonically decreasing function of $|\varphi |$. Here we study the gravitational fields produced by such vacuumless defects in the cases of both global and gauge symmetry breaking. We find that a global monopole has a strongly repulsive gravitational field, and its spacetime has an event horizon similar to that in de Sitter space. A gauge monopole spacetime is essentially that of a magnetically charged black hole. The gravitational field of a global string is repulsive and that of a gauge string is attractive at small distances and repulsive at large distances. Both gauge and global string spacetimes have singularities at a finite distance from the string core.

19 pages, REVTeX, 6 Postscript figures

References in corpus (4)

• Cosmological Imprint of an Energy Component with General Equation of State
• Quintessence, Cosmic Coincidence, and the Cosmological Constant
• Supersymmetry breaking and weakly vs. strongly coupled string theory
• Vacuum defects without a vacuum

Cited by in corpus (23)

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• Gravity localization on thick branes: a numerical approach
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• Scalar fields, bent branes, and RG flow
• New results for deformed defects
• Topological solitons in a vacuumless system
• Topological Defects and the Trial Orbit Method
• Degenerate vacua to vacuumless model and $K\bar{K}$ collisions
• Vacuumless kinks systems from vacuum ones, an example
• Fermion bound states in geometrically deformed backgrounds
• Global and Local D-vortices
• Tachyon Vortex
• From sine-Gordon to vacuumless systems in flat and curved spacetimes
• DF-strings from D3$\bar{\mathbf{D}}$3 as Cosmic Strings
• New results on asymmetric thick branes
• Exotic spacetimes, superconducting strings with linear momentum, and (not quite) all that
• Super long-range kinks
• Incompressible topological solitons
• Particle Motion Around Tachyon Monopole
• Non-Singular Stationary Global Strings
• Vacuumless topological defects in Lyra geometry
• Compact structures in impurity-doped vacuumless systems
• Compact, long-range and vacuumless regimes controlled by scalar fields in two-dimensional flat and five-dimensional warped geometries