13 citations · 19 across the 3 of their papers we have counts for
3 papers
astro-ph.CO2014
Cosmological signatures of brane inflation
Taichi Kidani
Cosmology motivated by string theory has been studied extensively in the recent literature. String theory is promising because it has interesting features such as unifying gravity,…
hep-th2014★ 6 cited
Non-Gaussianities in DBI inflation with angular motion
Taichi Kidani, Kazuya Koyama
We study DBI spinflation models with angular potentials that are derived in string theory. We analyse the background dynamics with different parameter sets and study the impact of…
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…