145 citations · 153 across the 5 of their papers we have counts for
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Note about leptogenesis from gravity waves in models of inflation
David H. Lyth, Yeinzon Rodriguez, Carlos Quimbay
We show how the mechanism recently proposed by Alexander, Peskin, and Sheikh-Jabbari, in which the observed cosmic matter-antimatter asymmetry comes from the contribution of the co…
Generating the primordial curvature perturbation from inflation
David H. Lyth
The scale--independence of the primordial curvature perturbation suggests that it comes from the vacuum fluctuation during inflation of a light scalar field. This field may be the…
Observational constraints on models of inflation from the density perturbation and gravitino production
David H. Lyth
Present data require a spectral index $n\gsim 0.95$ at something like 1- level. If this lower bound survives it will constrain `new' and `modular' inflation models, while raisin…
Gravitino creation by an oscillating scalar field
David H. Lyth, Hang Bae Kim
This paper has been withdrawn because the analytic estimates are not confirmed by the numerical calculation of Nilles, Peloso and Sorbo (hep-ph/0102264 and hep-th/0103202).
The parameter space for tree-level hybrid inflation
David H. Lyth
In a large region of parameter space, the tree-level hybrid inflation model is likely to be be invalidated by loop corrections. In particular, this is likely to be the case if both…
Flatons and Peccei-Quinn Symmetry
E. J. Chun, D. Comelli, David H. Lyth
We study in detail a supersymmetric Peccei-Quinn model, which has a DFSZ and a KSVZ version. The fields breaking the Peccei-Quinn (PQ) symmetry correspond to flat directions (flato…