1.5k citations · 12.4k across the 121 of their papers we have counts for
122 papers
Gravitational Wave Emission from a Cosmic String Loop, I: Global Case
Jorge Baeza-Ballesteros, Edmund J. Copeland, Daniel G. Figueroa +1
We study the simultaneous decay of global string loops into scalar particles (massless and massive modes) and gravitational waves (GWs). Using field theory simulations in flat spac…
Primordial black holes and stochastic inflation beyond slow roll: I -- noise matrix elements
Swagat S. Mishra, Edmund J. Copeland, Anne M. Green
Primordial Black Holes (PBHs) may form in the early Universe, from the gravitational collapse of large density perturbations, generated by large quantum fluctuations during inflati…
FeynMG: a FeynRules extension for scalar-tensor theories of gravity
Sergio Sevillano Muñoz, Edmund J. Copeland, Peter Millington +1
The ability to represent perturbative expansions of interacting quantum field theories in terms of simple diagrammatic rules has revolutionized calculations in particle physics (an…
CMB constraints on monodromy inflation at strong coupling
Edmund J. Copeland, Francesc Cunillera, Adam Moss +1
We carry out a thorough numerical examination of field theory monodromy inflation at strong coupling. We perform an MCMC analysis using a Gaussian likelihood, fitting multiparamete…
Generalised scalar-tensor theories and self-tuning
Edmund J. Copeland, Sukhraj Ghataore, Florian Niedermann +1
We explore a family of generalised scalar-tensor theories that exhibit self-tuning to low scale anti de Sitter vacua, even in the presence of a large cosmological constant. We are…
Fifth forces and broken scale symmetries in the Jordan frame
Edmund J. Copeland, Peter Millington, Sergio Sevillano Muñoz
We study the origin of fifth forces in scalar-tensor theories of gravity in the so-called Jordan frame, where the modifications to the gravitational sector are manifest. We focus o…