88 citations · 203 across the 5 of their papers we have counts for
5 papers
Systematics of multi-field effects at the end of warped brane inflation
Heng-Yu Chen, Jinn-Ouk Gong, Gary Shiu
We investigate in the context of brane inflation the possibility of additional light scalar fields generating significant power spectrum and non-Gaussianities at the end of inflati…
Multifield DBI Inflation and Non-Gaussianities
Min-xin Huang, Gary Shiu, Bret Underwood
We analyze the trajectories for multifield DBI inflation, which can arise in brane inflation models, and show that the trajectories are the same as in typical slow roll inflation.…
Probing the Geometry of Warped String Compactifications at the LHC
Gary Shiu, Bret Underwood, Devin G. E. Walker +1
Warped string compactifications, characterized by non-singular behavior of the metric in the infrared (IR), feature departures from the usual anti-de Sitter warped extra dimensions…
D3-brane Vacua in Stabilized Compactifications
Oliver DeWolfe, Liam McAllister, Gary Shiu +1
D3-branes feel no force in no-scale flux compactifications of type IIB string theory, but the nonperturbative effects required to stabilize the Kahler moduli break the no-scale str…
Extracting New Physics from the CMB
B. Greene, K. Schalm, G. Shiu +1
We review how initial state effects generically yield an oscillatory component in the primordial power spectrum of inflationary density perturbations. These oscillatory corrections…