87 citations · 553 across the 15 of their papers we have counts for
15 papers
Primordial Statistical Anisotropies: The Effective Field Theory Approach
Ali Akbar Abolhasani, Mohammad Akhshik, Razieh Emami +1
In this work we present the effective field theory of primordial statistical anisotropies generated during anisotropic inflation involving a background gauge field. Besides…
Anisotropic Inflation and Cosmological Observations
Razieh Emami
Recent observations opened up a new window on the inflationary model building. As it was firstly reported by the WMAP data, there may be some indications of statistical anisotropy…
Clustering Fossil from Primordial Gravitational Waves in Anisotropic Inflation
Razieh Emami, Hassan Firouzjahi
Inflationary models can correlate small-scale density perturbations with the long-wavelength gravitational waves (GW) in the form of the Tensor-Scalar-Scalar (TSS) bispectrum. This…
CMB statistical anisotropies of classical and quantum origins
Xingang Chen, Razieh Emami, Hassan Firouzjahi +1
We examine the impact of different anisotropic relics on inflation, in particular the predictions on the density perturbations. These relics can be the source of the large scale an…
Statistical Anisotropies in Gravitational Waves in Solid Inflation
Mohammad Akhshik, Razieh Emami, Hassan Firouzjahi +1
Solid inflation can support a long period of anisotropic inflation. We calculate the statistical anisotropies in the scalar and tensor power spectra and their cross-correlation in…
Scalar-Tensor Anti-Cross-Correlation does not Help to Reconcile the Tension between BICEP2 and Planck
Razieh Emami, Hassan Firouzjahi, Yi Wang
We examine the recent proposal [1] that the anti-cross-correlation of the scalar and tensor primordial fluctuations reconciles the tension between BICEP2 and Planck observations. W…