Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Curvature and isocurvature pertubations in a three-fluid model of curvaton, decay
AU - Gupta, Sujata
AU - Malik, Karim A.
AU - Wands, David
PY - 2004/3/24
Y1 - 2004/3/24
N2 - We study the evolution of the cosmological perturbations after inflation in curvaton models where the nonrelativistic curvaton decays into both radiation and a cold dark matter component. We calculate the primordial curvature and correlated isocurvature perturbations inherited by the radiation and cold dark matter after the curvaton has decayed. We give the transfer coefficient in terms of the initial curvaton density relative to the curvaton decay rate.
AB - We study the evolution of the cosmological perturbations after inflation in curvaton models where the nonrelativistic curvaton decays into both radiation and a cold dark matter component. We calculate the primordial curvature and correlated isocurvature perturbations inherited by the radiation and cold dark matter after the curvaton has decayed. We give the transfer coefficient in terms of the initial curvaton density relative to the curvaton decay rate.
U2 - 10.1103/PhysRevD.69.063513
DO - 10.1103/PhysRevD.69.063513
M3 - Journal article
VL - 69
JO - Physical Review D
JF - Physical Review D
SN - 1550-7998
IS - 6
M1 - 063513
ER -