71 citations · 295 across the 7 of their papers we have counts for
11 papers
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…
Magnetogenesis and the primordial non-gaussianity
David Seery
The primordial density fluctuation inevitably couples to all forms of matter via loop corrections and depends on the ambient conditions while inflation was ongoing. This gives us a…
Non-gaussianity of inflationary field perturbations from the field equation
David Seery, Karim A. Malik, David H. Lyth
We calculate the tree-level bispectrum of the inflaton field perturbation directly from the field equations, and construct the corresponding f_NL parameter. Our results agree with…
Different approaches to the second order Klein-Gordon equation
Karim A. Malik, David Seery, Kishore N. Ananda
We derive the Klein--Gordon equation for a single scalar field coupled to gravity at second order in perturbation theory and leading order in slow-roll. This is done in two ways: w…
Primordial Non-Gaussianity and Gravitational Waves: Observational Tests of Brane Inflation in String Theory
James E. Lidsey, David Seery
We study brane inflation scenarios in a warped throat geometry and show that there exists a consistency condition between the non-Gaussianity of the curvature perturbation and the…
Classicality of the primordial perturbations
David H. Lyth, David Seery
We show that during inflation, a quantum fluctuation becomes classical at all orders if it becomes classical at first order. Implications are discussed.