2 papers
hep-th2024
Causal and stable first-order chiral hydrodynamics
Nick Abboud, Enrico Speranza, Jorge Noronha
We derive the set of inequalities that is necessary and sufficient for nonlinear causality and linear stability of first-order relativistic hydrodynamics with either a con…
hep-ph2024
Freezing-In Gravitational Waves
Jacopo Ghiglieri, Jan Schütte-Engel, Enrico Speranza
The thermal plasma in the early universe produced a stochastic gravitational wave (GW) background, which peaks today in the microwave regime and was dubbed the cosmic gravitational…