Gravitational traces of broken gauge symmetries
Aleksandr Azatov, Daniele Barducci, Francesco Sgarlata
Abstract
We investigate first order phase transitions arising from hidden sectors which are in thermal equilibrium with the Standard Model bath in the Early Universe. Focusing on two simplified scenarios, an higgsed U(1) and a two scalar singlet model, we show the impact of friction effects acting on the bubble walls on the gravitational wave spectra and on the consequences for present and future interferometer experiments. We further comment on the possibility of disentangling the properties of the underlying theory featuring the first order phase transition should a stochastic gravitational wave signal be discovered.
Topics & Concepts
PhysicsGravitational waveGravitationGauge (firearms)Phase transitionGauge theoryTheoretical physicsHomogeneous spaceThermal fluctuationsClassical mechanicsOrder (exchange)Gravitational wave backgroundThermalQuantum electrodynamicsInterferometryStandard Model (mathematical formulation)Phase (matter)Thermal equilibriumCosmological perturbation theoryGravitational fieldSpectral lineQuantum mechanicsFirst orderCosmologyPerturbation theory (quantum mechanics)Pulsars and Gravitational Waves ResearchCosmology and Gravitation TheoriesBlack Holes and Theoretical Physics