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Detecting gravitational waves from cosmological phase transitions with LISA: an update

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Published 10 March 2020 © 2020 IOP Publishing Ltd and Sissa Medialab
, , Citation Chiara Caprini et al JCAP03(2020)024 DOI 10.1088/1475-7516/2020/03/024

1475-7516/2020/03/024

Abstract

We investigate the potential for observing gravitational waves from cosmological phase transitions with LISA in light of recent theoretical and experimental developments. Our analysis is based on current state-of-the-art simulations of sound waves in the cosmic fluid after the phase transition completes. We discuss the various sources of gravitational radiation, the underlying parameters describing the phase transition and a variety of viable particle physics models in this context, clarifying common misconceptions that appear in the literature and identifying open questions requiring future study. We also present a web-based tool, PTPlot, that allows users to obtain up-to-date detection prospects for a given set of phase transition parameters at LISA.

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10.1088/1475-7516/2020/03/024