155 citations · 3.6k across the 84 of their papers we have counts for
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Low scale inflation and the curvaton mechanism
Konstantinos Dimopoulos, David H. Lyth, Yeinzon Rodriguez
The primordial curvature perturbation may be due to a `curvaton' field, which dominates (or almost dominates) the energy density before it decays. In the simplest version of the cu…
Modular Hybrid Inflation without Flat Directions and the Curvaton
Konstantinos Dimopoulos
I study two-stage hybrid inflation driven by moduli fields, corresponding to flat directions of supersymmetry, lifted by supergravity corrections. The first stage corresponds to a…
Curvaton and QCD Axion in Supersymmetric Theories
Eung Jin Chun, Konstantinos Dimopoulos, David Lyth
A pseudo Nambu-Goldstone boson as curvaton avoids the eta-problem of inflation which plagues most curvaton candidates. We point out that a concrete realization of the curvaton mech…
Hybrid Dark Sector: Locked Quintessence and Dark Matter
Minos Axenides, Konstantinos Dimopoulos
We present a unified model of dark matter and dark energy. The dark matter field is a modulus corresponding to a flat direction of supersymmetry, which couples, in a hybrid type po…