Detecting gravitational waves from cosmological phase transitions with LISA: an update
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Cosmological phase transitionsGravitational wavesGravitational sourcesGravitational theory
Publisher version: Chiara Caprini et al. Detecting gravitational waves from cosmological phase transitions with LISA: an update. JCAP03(2020)024 [https://doi.org/10.1088/1475-7516/2020/03/024]
SponsorshipRoyal Society under the Newton International Fellowship program; National Council for Scientific and Technological Development (CNPq); UK Research & Innovation (UKRI) Science & Technology Facilities Council (STFC) ST/P000819/1; Academy of Finland European Commission 286769 308791 319066 320123 324882 328958; United States Department of Energy (DOE) DE-SC0019195; National Science Foundation (NSF) PHY-1719642; German Research Foundation (DFG) EXC 2121 390833306; Spanish Government RYC-2017-22986; Spanish MINECO's "Centro de Excelencia Severo Ochoa" Programme SEV-2016-0597; European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant 690575 674896; Spanish Proyectos de I+D de Generacion de Conocimiento PGC2018-096646-A-I00; German Research Foundation (DFG) EXC 2118/1; Science and Technology Facilities Council Ernest Rutherford Fellowship 0000-00016986-0517 ST/R003904/1; Research Funds of the University of Helsinki
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.