23 citations · 34 across the 3 of their papers we have counts for
3 papers
hep-th2014★ 7 cited
More on loops in reheating: Non-gaussianities and tensor power spectrum
N. Katirci, A. Kaya, M. Tarman
We consider the single field chaotic m^2ϕ^2 inflationary model with a period of preheating, where the inflaton decays to another scalar field χ in the parametric resonance regime.…
gr-qc2011★ 4 cited
Cosmological backreaction of a quantized massless scalar field
Ali Kaya, Merve Tarman
We consider the backreaction problem of a quantized minimally coupled massless scalar field in cosmology. The adiabatically regularized stress-energy tensor in a general Friedmann-…
gr-qc2011★ 23 cited
Stress-Energy Tensor of Adiabatic Vacuum in Friedmann-Robertson-Walker Spacetimes
Ali Kaya, Merve Tarman
We compute the leading order contribution to the stress-energy tensor corresponding to the modes of a quantum scalar field propagating in a Friedmann-Robertson-Walker universe with…