A. Abolhasani

most citedCherenkov in the Sky: Measuring the Sound Speed of Primordial Scalar Fluctuations

2 citations · 2 across the 1 of their papers we have counts for

collaborators

3 papers

astro-ph.CO2019★ 2 cited

Cherenkov in the Sky: Measuring the Sound Speed of Primordial Scalar Fluctuations

Ali Akbar Abolhasani, Sadra Jazayeri

We consider production of additional relativistic particles coupled to the inflaton. We show that the imprints of these particles on the spectrum of primordial perturbations can be…

astro-ph.CO2019

Resonant Reconciliation of Convex Models and the Planck

Ali Akbar Abolhasani, M. M. Sheikh-Jabbari

We consider single field chaotic inflationary models plus a cosine modulation term, as in axion monodromy models, and augment it by a light scalar field with similar cosine couplin…

astro-ph.CO2018

Single-Field Consistency relation and $δ N$ -Formalism

Ali Akbar Abolhasani, Misao Sasaki

According to the equivalence principal, the long wavelength perturbations must not have any dynamical effect on the short scale physics up to $O (k_{L}^{2} / k_{s}^{2})$ . Their effect…

Cherenkov in the Sky: Measuring the Sound Speed of Primordial Scalar Fluctuations

Resonant Reconciliation of Convex Models and the Planck

Single-Field Consistency relation and δN-Formalism

Single-Field Consistency relation and $δ N$ -Formalism