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Non-Gaussianity from preheating

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Non-Gaussianity from preheating. / Enqvist, Kari; Jokinen, Asko; Mazumdar, Anupam et al.
In: Physical review letters, Vol. 94, No. 16, 161301, 29.04.2005.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Enqvist, K, Jokinen, A, Mazumdar, A, Multamaki, T & Vaihkonen, A 2005, 'Non-Gaussianity from preheating', Physical review letters, vol. 94, no. 16, 161301. https://doi.org/10.1103/PhysRevLett.94.161301

APA

Enqvist, K., Jokinen, A., Mazumdar, A., Multamaki, T., & Vaihkonen, A. (2005). Non-Gaussianity from preheating. Physical review letters, 94(16), Article 161301. https://doi.org/10.1103/PhysRevLett.94.161301

Vancouver

Enqvist K, Jokinen A, Mazumdar A, Multamaki T, Vaihkonen A. Non-Gaussianity from preheating. Physical review letters. 2005 Apr 29;94(16):161301. doi: 10.1103/PhysRevLett.94.161301

Author

Enqvist, Kari ; Jokinen, Asko ; Mazumdar, Anupam et al. / Non-Gaussianity from preheating. In: Physical review letters. 2005 ; Vol. 94, No. 16.

Bibtex

@article{8ad73ac87d734a4cb56f76310803386c,
title = "Non-Gaussianity from preheating",
abstract = "We consider a two-field model for inflation where the second order metric perturbations can be amplified by a parametric resonance during preheating. We demonstrate that there can arise a considerable enhancement of non-Gaussianity sourced by the local terms generated through the coupled perturbations. We argue that the non-Gaussianity parameter could be as large as f_{NL} ~ 50. Our results may provide a useful test of preheating in future CMB experiments.",
author = "Kari Enqvist and Asko Jokinen and Anupam Mazumdar and Tuomas Multamaki and Antti Vaihkonen",
note = "{\textcopyright} 2005 The American Physical Society 4 pages ReVTeX4, discussion and references added, conclusions unchanged",
year = "2005",
month = apr,
day = "29",
doi = "10.1103/PhysRevLett.94.161301",
language = "English",
volume = "94",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "16",

}

RIS

TY - JOUR

T1 - Non-Gaussianity from preheating

AU - Enqvist, Kari

AU - Jokinen, Asko

AU - Mazumdar, Anupam

AU - Multamaki, Tuomas

AU - Vaihkonen, Antti

N1 - © 2005 The American Physical Society 4 pages ReVTeX4, discussion and references added, conclusions unchanged

PY - 2005/4/29

Y1 - 2005/4/29

N2 - We consider a two-field model for inflation where the second order metric perturbations can be amplified by a parametric resonance during preheating. We demonstrate that there can arise a considerable enhancement of non-Gaussianity sourced by the local terms generated through the coupled perturbations. We argue that the non-Gaussianity parameter could be as large as f_{NL} ~ 50. Our results may provide a useful test of preheating in future CMB experiments.

AB - We consider a two-field model for inflation where the second order metric perturbations can be amplified by a parametric resonance during preheating. We demonstrate that there can arise a considerable enhancement of non-Gaussianity sourced by the local terms generated through the coupled perturbations. We argue that the non-Gaussianity parameter could be as large as f_{NL} ~ 50. Our results may provide a useful test of preheating in future CMB experiments.

U2 - 10.1103/PhysRevLett.94.161301

DO - 10.1103/PhysRevLett.94.161301

M3 - Journal article

VL - 94

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 16

M1 - 161301

ER -