454 citations · 1.4k across the 18 of their papers we have counts for
9 papers · 1 filter
Quantum Fluctuations of a Self-interacting Inflaton
G. Karakaya, V. K. Onemli
We present a method to analytically compute the quantum corrected two-point correlation function of a scalar field in leading order at each loop in a homogeneous, isotropic and spa…
Quantum Effects of Mass on Scalar Field Correlations and Fluctuations during Inflation
G. Karakaya, V. K. Onemli
We consider an infrared truncated massive minimally coupled scalar field with a quartic self-interaction in the locally de Sitter background of an inflating universe. We compute th…
Quantum corrected power spectra of massless minimally coupled scalars during inflation: Effects of Yukawa coupling versus quartic self-interaction
V. K. Onemli
We, in the first part, contemplate a massless minimally coupled scalar which is Yukawa-coupled to a massless Dirac fermion in a locally de Sitter background of an inflating spaceti…
Vacuum Fluctuations of a Scalar Field during Inflation: Quantum versus Stochastic Analysis
V. K. Onemli
We consider an infrared truncated massless minimally coupled scalar field with a quartic self-interaction in the locally de Sitter background of an inflating universe. We compute t…
A Completely Regular Quantum Stress Tensor with
E. O. Kahya, V. K. Onemli, R. P. Woodard
For many quantum field theory computations in cosmology it is not possible to use the flat space trick of obtaining full, interacting states by evolving free states over infinite t…
Quantum Stability of a w < - 1 Phase of Cosmic Acceleration
E. O. Kahya, V. K. Onemli
We consider a massless, minimally coupled scalar with a quartic self-interaction which is released in Bunch-Davies vacuum in locally de Sitter background of an inflating universe.…