The effect of extra dimensions on gravity wave bursts from cosmic string cusps
Eimear O'Callaghan, Sarah Chadburn, Ghazal Geshnizjani, Ruth Gregory,, and Ivonne Zavala
TL;DR
This paper investigates how extra dimensions influence gravitational wave bursts from cosmic string cusps, revealing that additional dimensions can dampen these signals by smoothing cusps and decreasing their formation probability.
Contribution
It provides a novel analysis of the impact of extra dimensions on gravitational wave emissions from cosmic strings, incorporating cusp smoothing and formation probability reduction.
Findings
Extra dimensions smooth out cusps, reducing gravitational wave emission.
The probability of cusp formation decreases with extra dimensions.
Gravity wave signals are significantly damped due to these effects.
Abstract
We explore the kinematical effect of having extra dimensions on the gravity wave emission from cosmic strings. Additional dimensions both round off cusps, and reduce the probability of their formation. We recompute the gravity wave burst, taking into account these two factors, and find a potentially significant damping on the gravity waves of the strings.
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