Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion

Byrnes C, Wands D (2006)
Phys.Rev. D 74(4): 43529.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
Download
Es wurden keine Dateien hochgeladen. Nur Publikationsnachweis!
Autor*in
Byrnes, ChristianUniBi; Wands, David
Abstract / Bemerkung
We calculate the power spectra of primordial curvature and isocurvatureperturbations from a general two field inflation model at next-to-leading ordercorrection in a slow-roll expansion. In particular we calculate the spectralindices to second order in slow-roll parameters. We show that thecross-correlation of the curvature and isocurvature perturbations at the timeof Hubble-exit during inflation is non-zero at first-order in slow-rollparameters. We apply our results to different classes of inflation, includinginflaton and curvaton scenarios. The spectrum of primordial gravitationalwaves, curvature and isocurvature perturbations obey generalised consistencyrelations in two-field inflation models. We give the first two consistencyrelations in an infinite hierarchy.
Erscheinungsjahr
2006
Zeitschriftentitel
Phys.Rev. D
Band
74
Ausgabe
4
Art.-Nr.
43529
ISSN
1550-7998
eISSN
1550-2368
Page URI
https://pub.uni-bielefeld.de/record/2316908

Zitieren

Byrnes C, Wands D. Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion. Phys.Rev. D. 2006;74(4): 43529.
Byrnes, C., & Wands, D. (2006). Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion. Phys.Rev. D, 74(4), 43529. https://doi.org/10.1103/PhysRevD.74.043529
Byrnes, C., and Wands, D. (2006). Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion. Phys.Rev. D 74:43529.
Byrnes, C., & Wands, D., 2006. Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion. Phys.Rev. D, 74(4): 43529.
C. Byrnes and D. Wands, “Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion”, Phys.Rev. D, vol. 74, 2006, : 43529.
Byrnes, C., Wands, D.: Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion. Phys.Rev. D. 74, : 43529 (2006).
Byrnes, Christian, and Wands, David. “Curvature and isocurvature perturbations from two-field inflation in a slow-roll expansion”. Phys.Rev. D 74.4 (2006): 43529.

Export

Markieren/ Markierung löschen
Markierte Publikationen

Open Data PUB

Web of Science

Dieser Datensatz im Web of Science®

Quellen

arXiv: astro-ph/0605679

Inspire: 717821

Suchen in

Google Scholar