TY - JOUR
T1 - The power spectrum for a multi-component inflaton to second-order corrections in the slow-roll expansion
AU - Gong, Jin Ook
AU - Stewart, Ewan D.
N1 - Funding Information:
We thank Hyun-Chul Lee for valuable discussions and helpful comments. This work was supported in part by Brain Korea 21 and KRF grant 2000-015-DP0080.
PY - 2002/7/4
Y1 - 2002/7/4
N2 - We derive the power spectrum Ρ(k) of the density perturbations produced during inflation up to second-order corrections in the standard slow-roll approximation for an inflaton with more than one degree of freedom. We also present the spectral index n up to first-order corrections including previously missing terms, and the running dn/d lnk to leading order.
AB - We derive the power spectrum Ρ(k) of the density perturbations produced during inflation up to second-order corrections in the standard slow-roll approximation for an inflaton with more than one degree of freedom. We also present the spectral index n up to first-order corrections including previously missing terms, and the running dn/d lnk to leading order.
UR - http://www.scopus.com/inward/record.url?scp=0037019411&partnerID=8YFLogxK
U2 - 10.1016/S0370-2693(02)02004-X
DO - 10.1016/S0370-2693(02)02004-X
M3 - Article
AN - SCOPUS:0037019411
VL - 538
SP - 213
EP - 222
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 3-4
ER -