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Constraining Curvatonic Reheating
Robert J. Hardwick, Vincent Vennin, Kazuya Koyama +1
We derive the first systematic observational constraints on reheating in models of inflation where an additional light scalar field contributes to primordial density perturbations…
Critical Number of Fields in Stochastic Inflation
Vincent Vennin, Hooshyar Assadullahi, Hassan Firouzjahi +2
Stochastic effects in generic scenarios of inflation with multiple fields are investigated. First passage time techniques are employed to calculate the statistical moments of the n…
Multiple Fields in Stochastic Inflation
Hooshyar Assadullahi, Hassan Firouzjahi, Mahdiyar Noorbala +2
Stochastic effects in multi-field inflationary scenarios are investigated. A hierarchy of diffusion equations is derived, the solutions of which yield moments of the numbers of inf…