243 citations · 3k across the 96 of their papers we have counts for
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Classical non-Gaussianity from non-linear evolution of curvature perturbations
Jinn-Ouk Gong, Jai-chan Hwang, Hyerim Noh
We study the non-linear evolution of the curvature perturbations during matter dominated era. We show that regardless of the origin of the primordial perturbation, the Bardeen pote…
Local anomalies around the third peak in the CMB angular power spectrum of the WMAP 7-year data
Kyeong Yeon Ko, Chan-Gyung Park, Jai-chan Hwang
We estimate the power spectra of CMB temperature anisotropy in localized regions on the sky using the WMAP 7-year data. Here, we report that the north hat and the south hat regions…
Conformal invariance of curvature perturbation
Jinn-Ouk Gong, Jai-chan Hwang, Wan Il Park +2
We show that in the single component situation all perturbation variables in the comoving gauge are conformally invariant to all perturbation orders. Generally we identify a specia…