2 papers
hep-ph2025
High-frequency Gravitational Waves from Superstring Phases in the Early Universe
Joseph P. Conlon, Edmund J. Copeland, Edward Hardy +1
When moduli roll in the early universe, all physical scales - including string tensions - simultaneously evolve. The dynamics of cosmic string loops with time-varying tension can p…
astro-ph.CO2025
Gravitational wave and particle emission from a cosmic string loop: local case
Jorge Baeza-Ballesteros, Edmund J. Copeland, Daniel G. Figueroa +1
Using lattice field simulations of the Abelian-Higgs model, we characterize the simultaneous emission of (scalar and gauge) particles and gravitational waves (GWs) by local string…