76 citations · 506 across the 18 of their papers we have counts for
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Primordial Anisotropies in Gauged Hybrid Inflation
Ali Akbar Abolhasani, Razieh Emami, Hassan Firouzjahi
We study primordial anisotropies generated in the model of gauged hybrid inflation in which the complex waterfall field is charged under a gauge field. Primordial anisotropi…
Asymmetric Sky from the Long Mode Modulations
Ali Akbar Abolhasani, Shant Baghram, Hassan Firouzjahi +1
The observed dipole asymmetry in Cosmic Microwave Background radiation may have originated from the modulations of super-horizon long wavelength modes. In this work we unveil diffe…
δN Formalism in Anisotropic Inflation and Large Anisotropic Bispectrum and Trispectrum
Ali Akbar Abolhasani, Razieh Emami, Javad T. Firouzjaee +1
We present a consistent δN formalism for curvature perturbations in anisotropic cosmological backgrounds. We employ our δN formalism to calculate the power spectrum, the bispectrum…