155 citations · 3.6k across the 84 of their papers we have counts for
4 papers · 1 filter
Eliminating the eta-problem in SUGRA Hybrid Inflation with Vector Backreaction
Konstantinos Dimopoulos, George Lazarides, Jacques M. Wagstaff
It is shown that, when the inflaton field modulates the gauge kinetic function of the gauge fields in supergravity realisations of inflation, the dynamic backreaction leads to a ne…
The inflating curvaton
Konstantinos Dimopoulos, Kazunori Kohri, David H. Lyth +1
The primordial curvature perturbation ζmay be generated by some curvaton field σ, which is negligible during inflation and has more or less negligible interactions until it decays.…
Statistical Anisotropy from Vector Curvaton in D-brane Inflation
Konstantinos Dimopoulos, Danielle Wills, Ivonne Zavala
We investigate the possibility of embedding the vector curvaton paradigm in D-brane models of inflation in Type IIB string theory in a simple toy model. The vector curvaton is iden…
Statistical Anisotropy and the Vector Curvaton Paradigm
Konstantinos Dimopoulos
The vector curvaton paradigm is reviewed. The mechanism allows a massive vector boson field to contribute to or even generate the curvature perturbation in the Universe. Contributi…