162 citations · 667 across the 8 of their papers we have counts for
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astro-ph.CO2012★ 13 cited
Non-Gaussianities in multi-field DBI inflation with a waterfall phase transition
Taichi Kidani, Kazuya Koyama, Shuntaro Mizuno
We study multi-field DBI inflation models with a waterfall phase transition. This transition happens for a D3 brane moving in the warped conifold if there is an instability along a…
astro-ph.CO2009★ 52 cited
Dynamics of a scalar field in Robertson-Walker spacetimes
Edmund J. Copeland, Shuntaro Mizuno, Maryam Shaeri
We analyze the dynamics of a single scalar field in Friedmann-Robertson-Walker universes with spatial curvature. We obtain the fixed point solutions which are shown to be late time…