162 citations · 2k across the 45 of their papers we have counts for
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astro-ph.CO2011★ 20 cited
Trispectrum estimation in various models of equilateral type non-Gaussianity
Keisuke Izumi, Shuntaro Mizuno, Kazuya Koyama
We calculate the shape correlations between trispectra in various equilateral non-Gaussian models, including DBI inflation, ghost inflation and Lifshitz scalars, using the full tri…
astro-ph.CO2011★ 71 cited
Primordial fluctuations and non-Gaussianities from multifield DBI Galileon inflation
Sebastien Renaux-Petel, Shuntaro Mizuno, Kazuya Koyama
We study a cosmological scenario in which the DBI action governing the motion of a D3-brane in a higher-dimensional spacetime is supplemented with an induced gravity term. The latt…