Home > Research > Publications & Outputs > Generating the curvature perturbation at the en...

Research

Links

Text available via DOI:

View graph of relations

Generating the curvature perturbation at the end of inflation in string theory

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

Published

Standard

Generating the curvature perturbation at the end of inflation in string theory. / Lyth, D. H.; Riotto, A.
In: Physical review letters, Vol. 97, No. 121301, 2006.

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

Harvard

Lyth, DH & Riotto, A 2006, 'Generating the curvature perturbation at the end of inflation in string theory', Physical review letters, vol. 97, no. 121301. https://doi.org/10.1103/PhysRevLett.97.121301

APA

Lyth, D. H., & Riotto, A. (2006). Generating the curvature perturbation at the end of inflation in string theory. Physical review letters, 97(121301). https://doi.org/10.1103/PhysRevLett.97.121301

Vancouver

Lyth DH, Riotto A. Generating the curvature perturbation at the end of inflation in string theory. Physical review letters. 2006;97(121301). doi: 10.1103/PhysRevLett.97.121301

Author

Lyth, D. H. ; Riotto, A. / Generating the curvature perturbation at the end of inflation in string theory. In: Physical review letters. 2006 ; Vol. 97, No. 121301.

Bibtex

@article{3fe43b114e894ff995c90ae0ea875857,
title = "Generating the curvature perturbation at the end of inflation in string theory",
abstract = "In brane inflationary scenarios, the cosmological perturbations are supposed to originate from the vacuum fluctuations of the inflaton field corresponding to the position of the brane. We show that a significant, and possibly dominant, contribution to the curvature perturbation is generated at the end of inflation through the vacuum fluctuations of fields, other than the inflaton, which are light during the inflationary trajectory and become heavy at the brane-antibrane annihilation. These fields appear generically in string compactifications where the background geometry has exact or approximate isometries and parametrize the internal angular directions of the brane.",
author = "Lyth, {D. H.} and A. Riotto",
year = "2006",
doi = "10.1103/PhysRevLett.97.121301",
language = "English",
volume = "97",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "121301",

}

RIS

TY - JOUR

T1 - Generating the curvature perturbation at the end of inflation in string theory

AU - Lyth, D. H.

AU - Riotto, A.

PY - 2006

Y1 - 2006

N2 - In brane inflationary scenarios, the cosmological perturbations are supposed to originate from the vacuum fluctuations of the inflaton field corresponding to the position of the brane. We show that a significant, and possibly dominant, contribution to the curvature perturbation is generated at the end of inflation through the vacuum fluctuations of fields, other than the inflaton, which are light during the inflationary trajectory and become heavy at the brane-antibrane annihilation. These fields appear generically in string compactifications where the background geometry has exact or approximate isometries and parametrize the internal angular directions of the brane.

AB - In brane inflationary scenarios, the cosmological perturbations are supposed to originate from the vacuum fluctuations of the inflaton field corresponding to the position of the brane. We show that a significant, and possibly dominant, contribution to the curvature perturbation is generated at the end of inflation through the vacuum fluctuations of fields, other than the inflaton, which are light during the inflationary trajectory and become heavy at the brane-antibrane annihilation. These fields appear generically in string compactifications where the background geometry has exact or approximate isometries and parametrize the internal angular directions of the brane.

U2 - 10.1103/PhysRevLett.97.121301

DO - 10.1103/PhysRevLett.97.121301

M3 - Journal article

VL - 97

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 121301

ER -