279 citations · 488 across the 13 of their papers we have counts for
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hep-ph2010★ 22 cited
Effective Theory Approach to the Spontaneous Breakdown of Lorentz Invariance
Cristian Armendariz-Picon, Alberto Diez-Tejedor, Riccardo Penco
We generalize the coset construction of Callan, Coleman, Wess and Zumino to theories in which the Lorentz group is spontaneously broken down to one of its subgroups. This allows us…
hep-ph2007★ 20 cited
Preheating in Derivatively-Coupled Inflation Models
Cristian Armendariz-Picon, Mark Trodden, Eric J. West
We study preheating in theories where the inflaton couples derivatively to scalar and gauge fields. Such couplings may dominate in natural models of inflation, in which the flatnes…