Kinks, extra dimensions, and gravitational waves

Abstract

We investigate in detail the gravitational wave signal from kinks on cosmic (super)strings, including the kinematical effects from the internal extra dimensions. We find that the signal is suppressed, however, the effect is less significant that that for cusps. Combined with the greater incidence of kinks on (super)strings, it is likely that the kink signal offers the better chance for detection of cosmic (super)strings.

18 pages, 5 figures

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• Cosmological Backgrounds of Gravitational Waves and eLISA/NGO: Phase Transitions, Cosmic Strings and Other Sources
• Seeking String Theory in the Cosmos
• Probing Cosmic Superstrings with Gravitational Waves
• Gravitational waves and extra dimensions: a short review
• Inflation, String Theory and Cosmology
• Semianalytic calculation of cosmic microwave background anisotropies from wiggly and superconducting cosmic strings
• Cosmic superstring trajectories in warped compactifications
• Stationary Closed Strings in Five-dimensional Flat Spacetime
• Effects of anisotropic dynamics on cosmic strings
• Analytic theory of discontinuities in current-carrying cosmic strings