18 citations · 45 across the 8 of their papers we have counts for
5 papers · 1 filter
Phase-Space Analysis of Quadratic Dark Energy: Stable Attractors and Their Observational Signatures
Sahar Mohammadi, Ebrahim Yusofi, Kosar Asadi
We present a comprehensive phase-space analysis of a quadratic dark energy model where the pressure includes a nonlinear term proportional to the square of the energy density. This…
Stochastic Multiple Fields Inflation: Diffusion Dominated Regime
Kosar Asadi, Amin Nassiri-Rad, Hassan Firouzjahi
We study multiple fields inflation in diffusion dominated regime using stochastic formalism. The fields are under pure Brownian motion in a dS background with boundaries in hi…
Consistency Relation and Non-Gaussianity in a Galileon Inflation
Kosar Asadi, Kourosh Nozari
We study a particular Galileon inflation in the light of Planck2015 observational data in order to constraint the model parameter space. We study the spectrum of the primordial mod…
The Size of Local Bispectrum and Trispectrum in a Non-Minimal Inflation
Kosar Asadi, Kourosh Nozari
Focusing on the local type primordial non-Gaussianities, we study the bispectrum and trispectrum during a non-minimal slow-roll inflation. We use the so-called formalism to in…
Testing a Two Field Inflation Beyond the Slow-Roll Approximation
Kourosh Nozari, Kosar Asadi
We consider a model of two-field inflation, containing an ordinary scalar field and a DBI field. We work beyond the slow-roll approximation, but we assume a separable Hubble parame…