145 citations
2 papers
astro-ph2005★ 145 cited
Non-gaussianity from the second-order cosmological perturbation
David H. Lyth, Yeinzon Rodriguez
Several conserved and/or gauge invariant quantities described as the second-order curvature perturbation have been given in the literature. We revisit various scenarios for the gen…
hep-ph2004★ 2 cited
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…