More varieties of hybrid inflation

Details More varieties of hybrid inflation More varieties of hybrid inflation

1996-06-22

arxiv.org/abs/hep-ph/9606412v1

Phys.Rev.D54:7186-7190,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages

Scientific paper

10.1103/PhysRevD.54.7186

It is pointed out that hybrid inflation can be implemented with the inflaton field rolling away from the origin instead of towards it. This `inverted' hybrid inflation has a spectral index $ n < 1 $, in contrast with ordinary hybrid inflation which has $ n \gtrsim 1 $, so a measured value of $n$ substantially different from 1 would distinguish the two. Other generalisations of hybrid inflation are also considered.

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