78 citations · 541 across the 39 of their papers we have counts for
40 papers
Constant-Roll Inflation as a Competitive Alternative to Slow-Roll Inflation
Sandip Biswas, Rajib Saha, Kaushik Bhattacharya
Starting from the constant-roll condition, which involves the constant-roll parameter , which is a fundamental constant in the constant-roll inflationary models, we derive the s…
Modifications of CMB Temperature and Polarization Quadrupole Signals in Thurston Spacetimes
Tanay Gupta, Sukanta Panda, Rajib Saha
Recent cosmological tests have discovered a fresh new set of anomalies in the large-scale isotropy of the universe. Motivated thus by the numerous pieces of evidence for large-scal…
An Analytic Formalism of Inflation for Derivative Coupled Scalar Field and Validating its predictions for Some Inflationary Potentials
Aayush Randeep, Rajib Saha
One of the fundamental objectives of contemporary cosmology is to understand the physics of the inflationary universe, owing to its observably verifiable predictions about the very…
Foreground removal and angular power spectrum estimation of 21 cm signal using harmonic space ILC method
Albin Joseph, Rajib Saha
Mapping the distribution of neutral atomic hydrogen (HI) in the Universe through its 21 cm emission line provides a powerful cosmological probe to map the large-scale structures an…
Accurate and Unbiased Reconstruction of CMB B Mode using Deep Learning
Srikanta Pal, Sarvesh Kumar Yadav, Rajib Saha +1
An ingeniously designed autoencoder (PrimeNet) using simulated observations of future generation ECHO satellite mission recovers CMB B mode map, angular spectrum for multipoles $\e…
Detection of Dipole Modulation in CMB Temperature Anisotropy Maps from WMAP and Planck using Artificial Intelligence
Md Ishaque Khan, Rajib Saha
Breakdown of rotational invariance of the primordial power spectrum manifests in the statistical anisotropy of the observed Cosmic Microwave Background (CMB) radiation. Hemispheric…