Generation of Gravitational Waves and Scalar Perturbations in Inflation with Effective $\Lambda$-term and T/S Story

Abstract

We argue that gravitational wave contribution to the cosmic microwave background anisotropy at angular scale $\sim 10^0$ may exceed 50% for some models of hybrid inflation producing standard cosmology with the density perturbation slope $n\simeq 1$.

3 pages, gziped PS-file, uses sprocl.sty, to be published in Proceedings of the 18th Texas Symposium on Relativistic Astrophysics, eds. A.Olinto, J.Frieman, D.Schramm, World Scientific