160 citations · 204 across the 2 of their papers we have counts for
Showing 2007Show all
2 papers · 1 filter
hep-th2007★ 160 cited
Cascading DGP
Claudia de Rham, Gia Dvali, Stefan Hofmann +4
We present a higher codimension generalization of the DGP scenario which, unlike previous attempts, is free of ghost instabilities. The 4D propagator is made regular by embedding o…
hep-th2007★ 273 cited
Enhanced Non-Gaussianity from Excited Initial States
R. Holman, Andrew J. Tolley
We use the techniques of effective field theory in an expanding universe to examine the effect of choosing an excited inflationary initial state built over the Bunch-Davies state o…