695 citations · 7k across the 122 of their papers we have counts for
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Gravitational waves generated by second order effects during inflation
Bob Osano, Cyril Pitrou, Peter Dunsby +2
The generation of gravitational waves during inflation due to the non-linear coupling of scalar and tensor modes is discussed. Two methods describing gravitational wave perturbatio…
The cosmological gravitational wave background from primordial density perturbations
Kishore N. Ananda, Chris Clarkson, David Wands
We discuss the gravitational wave background generated by primordial density perturbations evolving during the radiation era. At second-order in a perturbative expansion, density f…
A gravitational wave window on extra dimensions
Chris Clarkson, Sanjeev S. Seahra
We report on the possibility of detecting a submillimetre-sized extra dimension by observing gravitational waves (GWs) emitted by pointlike objects orbiting a braneworld black hole…
Photon gas dynamics in the early universe
Chris Clarkson, Mattias Marklund
Quantum electrodynamics predicts that photons undergo one-loop scattering. The combined effect of this on the behaviour of a photon gas for temperatures above 10^{10} K results in…