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A model for fluctuating inflaton coupling: (s)neutrino induced adiabatic perturbations and non-thermal leptogenesis

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A model for fluctuating inflaton coupling: (s)neutrino induced adiabatic perturbations and non-thermal leptogenesis. / Mazumdar, Anupam.
In: Physical review letters, Vol. 92, No. 24, 241301, 03.06.2003.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Mazumdar A. A model for fluctuating inflaton coupling: (s)neutrino induced adiabatic perturbations and non-thermal leptogenesis. Physical review letters. 2003 Jun 3;92(24):241301. doi: 10.1103/PhysRevLett.92.241301

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@article{b776cdddff724d26aa3b68d2008b2d77,
title = "A model for fluctuating inflaton coupling: (s)neutrino induced adiabatic perturbations and non-thermal leptogenesis",
abstract = "We discuss an unique possibility of generating adiabatic density perturbations and leptogenesis from the spatial fluctuations of the inflaton decay rate. The key assumption is that the initial isocurvature perturbations are created in the right handed sneutrino sector during inflation which is then converted into adiabatic perturbations when the inflaton decays. We discuss distinct imprints on the cosmic micro wave background radiation, which can distinguish non-thermal versus thermal leptogenesis.",
author = "Anupam Mazumdar",
note = "{\textcopyright} 2004 The American Physical Society 4 pages, version to be published in PRL",
year = "2003",
month = jun,
day = "3",
doi = "10.1103/PhysRevLett.92.241301",
language = "English",
volume = "92",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "24",

}

RIS

TY - JOUR

T1 - A model for fluctuating inflaton coupling: (s)neutrino induced adiabatic perturbations and non-thermal leptogenesis

AU - Mazumdar, Anupam

N1 - © 2004 The American Physical Society 4 pages, version to be published in PRL

PY - 2003/6/3

Y1 - 2003/6/3

N2 - We discuss an unique possibility of generating adiabatic density perturbations and leptogenesis from the spatial fluctuations of the inflaton decay rate. The key assumption is that the initial isocurvature perturbations are created in the right handed sneutrino sector during inflation which is then converted into adiabatic perturbations when the inflaton decays. We discuss distinct imprints on the cosmic micro wave background radiation, which can distinguish non-thermal versus thermal leptogenesis.

AB - We discuss an unique possibility of generating adiabatic density perturbations and leptogenesis from the spatial fluctuations of the inflaton decay rate. The key assumption is that the initial isocurvature perturbations are created in the right handed sneutrino sector during inflation which is then converted into adiabatic perturbations when the inflaton decays. We discuss distinct imprints on the cosmic micro wave background radiation, which can distinguish non-thermal versus thermal leptogenesis.

U2 - 10.1103/PhysRevLett.92.241301

DO - 10.1103/PhysRevLett.92.241301

M3 - Journal article

VL - 92

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 24

M1 - 241301

ER -