117 citations · 1k across the 40 of their papers we have counts for
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astro-ph.CO2012
Beyond δN formalism
Atsushi Naruko, Yu-ichi Takamizu, Misao Sasaki
We develop a theory of nonlinear cosmological perturbations on superhorizon scales for a multi-component scalar field with a general kinetic term and a general form of the potentia…
astro-ph.CO2012★ 8 cited
A general proof of the equivalence between the δN and covariant formalisms
Atsushi Naruko
Recently, the equivalence between the δN and covariant formalisms has been shown (Suyama et al. 2012), but they essentially assumed Einstein gravity in their proof. They showed tha…