384 citations · 4.8k across the 89 of their papers we have counts for
6 papers · 1 filter
Tachyacoustic Cosmology: An Alternative to Inflation
Dennis Bessada, William H. Kinney, Dejan Stojkovic +1
We consider an alternative to inflation for the generation of superhorizon perturbations in the universe in which the speed of sound is faster than the speed of light. We label suc…
Inflationary potentials in DBI models
Dennis Bessada, William H. Kinney, Konstantinos Tzirakis
We study DBI inflation based upon a general model characterized by a power-law flow parameter and speed of sound , where and are constant…
Observing the Evolution of the Universe
James Aguirre, Alexandre Amblard, Amjad Ashoorioon +172
How did the universe evolve? The fine angular scale (l>1000) temperature and polarization anisotropies in the CMB are a Rosetta stone for understanding the evolution of the univers…
Non-Gaussianity as a Probe of the Physics of the Primordial Universe and the Astrophysics of the Low Redshift Universe
E. Komatsu, N. Afshordi, N. Bartolo +58
A new and powerful probe of the origin and evolution of structures in the Universe has emerged and been actively developed over the last decade. In the coming decade, non-Gaussiani…
TASI Lectures on Inflation
William H. Kinney
This series of lectures gives a pedagogical review of the subject of cosmological inflation. I discuss Friedmann-Robertson-Walker cosmology and the horizon and flatness problems of…
Tensors, non-Gaussianities, and the future of potential reconstruction
Brian A. Powell, Konstantinos Tzirakis, William H. Kinney
We present projections for reconstruction of the inflationary potential expected from ESA's upcoming Planck Surveyor CMB mission. We focus on the effects that tensor perturbations…