261 citations · 2.8k across the 60 of their papers we have counts for
5 papers · 1 filter
Constraining axion inflation with gravitational waves across 29 decades in frequency
Peter Adshead, John T. Giblin, Mauro Pieroni +1
We demonstrate that gravitational waves generated by efficient gauge preheating after axion inflation generically contribute significantly to the effective number of relativistic d…
Constraining axion inflation with gravitational waves from preheating
Peter Adshead, John T. Giblin, Mauro Pieroni +1
We study gravitational wave production from gauge preheating in a variety of inflationary models, detailing its dependence on both the energy scale and the shape of the potential.…
Preheating in Full General Relativity
John T. Giblin, Avery J. Tishue
We investigate the importance of local gravity during preheating, the non-linear dynamics that may be responsible for starting the process of reheating the universe after inflation…
Nonlinear Dynamics of Preheating after Multifield Inflation with Nonminimal Couplings
Rachel Nguyen, Jorinde van de Vis, Evangelos I. Sfakianakis +2
We study the post-inflation dynamics of multifield models involving nonminimal couplings using lattice simulations to capture significant nonlinear effects like backreaction and re…
Cosmic expansion from spinning black holes
John T. Giblin, James B. Mertens, Glenn D. Starkman +1
We examine how cosmological expansion arises in a universe containing a lattice of spinning black holes. We study averaged expansion properties as a function of fundamental propert…