Gravitational waves (GWs) were recently detected for the first time. This revolutionary
discovery opens a new way of learning about particle physics through GWs from first-order …

Gravitational waves (GWs) have a great potential to probe cosmology. We review early
universe sources that can lead to cosmological backgrounds of GWs. We begin by …

In this work we present several characteristic examples of theories of gravity and particle
physics scenarios that may yield an observable energy spectrum of stochastic primordial …

We investigate the potential for observing gravitational waves from cosmological phase
transitions with LISA in light of recent theoretical and experimental developments. Our …

Abstract The Deci-hertz Interferometer Gravitational Wave Observatory (DECIGO) is a future
Japanese space mission with a frequency band of 0.1 Hz to 10 Hz. DECIGO aims at the …

A bstract Gravitational waves (GWs) from strong first-order phase transitions (SFOPTs) in the
early Universe are a prime target for upcoming GW experiments. In this paper, I construct …

What is the maximum possible strength of a first-order electroweak phase transition and the
resulting gravitational wave (GW) signal? While naively one might expect that supercooling …

The terminal wall velocity of a first-order phase transition bubble in the early Universe can
be calculated from a set of fluid equations describing the scalar fields and the plasma's state …

We derive efficiency factors for the production of gravitational waves through bubble
collisions and plasma-related sources in strong phase transitions, and find the conditions …

We propose a space-based interferometer surveying the gravitational wave (GW) sky in the
milli-Hz to μ-Hz frequency range. By the 2040s, the μ-Hz frequency band, bracketed in …