Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Asadi, Kosar"'
Autor:
Nassiri-Rad, Amin, Asadi, Kosar
In this paper, we investigate the scalar-induced gravitational waves in single-field non-attractor inflation for the Pulsar Timing Arrays data. Our model comprises three phases of inflation: the first and third phases are slow-roll inflation, while t
Externí odkaz:
http://arxiv.org/abs/2310.11427
We study multiple fields inflation in diffusion dominated regime using stochastic $\delta N$ formalism. The fields are under pure Brownian motion in a dS background with boundaries in higher dimensional field space. This setup can be realized towards
Externí odkaz:
http://arxiv.org/abs/2304.00577
We study the Brownian motion of a field where there are boundaries in the inflationary field space. Both the field and the boundary undergo Brownian motions with the amplitudes of the noises determined by the Hubble expansion rate of the correspondin
Externí odkaz:
http://arxiv.org/abs/2208.08229
Akademický článek
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Autor:
Asadi, Kosar, Nozari, Kourosh
Publikováno v:
Nucl. Phys. B 934 (2018)118
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 $\delta N$ formalism to investigate the super-horizon evolution of the primordial perturba
Externí odkaz:
http://arxiv.org/abs/1611.10025
Autor:
Asadi, Kosar, Nozari, Kourosh
Publikováno v:
JCAP 12 (2016) 013
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 modes of the density perturbations by expanding the action up to the seco
Externí odkaz:
http://arxiv.org/abs/1610.01358
Autor:
Nozari, Kourosh, Asadi, Kosar
Publikováno v:
Phys. Rev. D 93, 103511 (2016)
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 parameter. We then derive the form of potential in this framework and study
Externí odkaz:
http://arxiv.org/abs/1605.00823
Autor:
Asadi, Kosar, Nozari, Kourosh
Publikováno v:
In Nuclear Physics, Section B December 2019 949
Autor:
Asadi, Kosar, Nozari, Kourosh
Publikováno v:
In Nuclear Physics, Section B September 2018 934:118-148
Publikováno v:
Journal of Shahrekord University of Medical Sciences. Dec2020, Vol. 22 Issue 4, p167-172. 6p.