4 papers
New Shapes of Primordial Non-Gaussianity from Quasi-Single Field Inflation with Multiple Isocurvatons
Michael McAneny, Alexander K. Ridgway
We study a simple extension of quasi-single field inflation in which the inflaton interacts with multiple extra massive scalars known as isocurvatons. Due to the breaking of time t…
Loop-Induced Stochastic Bias at Small Wavevectors
Michael McAneny, Alexander K. Ridgway, Mikhail P. Solon +1
Primordial non-Gaussianities enhanced at small wavevectors can induce a power spectrum of the galaxy overdensity that differs greatly from that of the matter overdensity at large l…
Non-Gaussian Enhancements of Galactic Halo Correlations in Quasi-Single Field Inflation
Haipeng An, Michael McAneny, Alexander K. Ridgway +1
We consider a quasi-single field inflation model in which the inflaton interacts with a massive scalar field called the isocurvaton. Due to the breaking of time translational invar…
Quasi Single Field Inflation in the non-perturbative regime
Haipeng An, Michael McAneny, Alexander K. Ridgway +1
In quasi single field inflation there are massive fields that interact with the inflaton field. If these other fields are not much heavier than the Hubble constant during inflation…