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arXiv · 1912.08832

Gravitational Wave Bursts as Harbingers of Cosmic Strings Diluted by Inflation

Yanou Cui·Marek Lewicki·David E. Morrissey
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Abstract

A standard expectation of primordial cosmological inflation is that it dilutes all relics created before its onset to unobservable levels. We present a counterexample to this expectation by demonstrating that a network of cosmic strings diluted by inflation can regrow to a level that is potentially observable today in gravitational waves~(GWs). In contrast to undiluted cosmic strings, whose primary GW signals are typically in the form of a stochastic GW background, the leading signal from a diluted cosmic string network can be distinctive bursts of GWs within the sensitivity reach of current and future GW observatories.

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Yanou Cui, Marek Lewicki, David E. Morrissey. 2019-12-18. Gravitational Wave Bursts as Harbingers of Cosmic Strings Diluted by Inflation. https://doi.org/10.1103/physrevlett.125.211302

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