1.4k citations · 12.2k across the 332 of their papers we have counts for
5 papers · 1 filter
Observable gravitational waves from inflation with small field excursions
Shaun Hotchkiss, Anupam Mazumdar, Seshadri Nadathur
The detection of primordial gravitational waves, or tensor perturbations, would be regarded as compelling evidence for inflation. The canonical measure of this is the ratio of tens…
The integrated Sachs-Wolfe imprints of cosmic superstructures: a problem for ΛCDM
Seshadri Nadathur, Shaun Hotchkiss, Subir Sarkar
A crucial diagnostic of the ΛCDM cosmological model is the integrated Sachs-Wolfe (ISW) effect of large-scale structure on the cosmic microwave background (CMB). The ISW imprint of…
The curvaton scenario in the MSSM and predictions for non-Gaussianity
Anupam Mazumdar, Seshadri Nadathur
We provide a model in which both the inflaton and the curvaton are obtained from within the minimal supersymmetric Standard Model, with known gauge and Yukawa interactions. Since n…
Inflation with large supergravity corrections
Anupam Mazumdar, Seshadri Nadathur, Philip Stephens
It is well known that large Hubble-induced supergravity corrections to the inflaton field can ruin the flatness of the potential, thus creating a tension between slow-roll inflatio…
Inflection point inflation: WMAP constraints and a solution to the fine-tuning problem
Shaun Hotchkiss, Anupam Mazumdar, Seshadri Nadathur
We consider observational constraints and fine-tuning issues in a renormalizable model of inflection point inflation, with two independent parameters. We derive constraints on the…