Detecting gravitational waves from cosmological phase transitions with LISA: an update
Résumé
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.
Mots clés
wave: acoustic
critical phenomena
gravitational radiation
LISA
gravitational radiation: direct detection
gravitational radiation detector
numerical calculations
gravitational radiation: emission
gravitational radiation: power spectrum
Higgs model
energy: density
bubble: nucleation
dark matter
new physics
effective field theory
dilaton
standard model
perturbation theory