Chaotic inflation in models with flat directions

Details Chaotic inflation in models with flat directions Chaotic inflation in models with flat directions

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..216...31g&link_type=abstract

Physics Letters B, Volume 216, Issue 1-2, p. 31-36.

Physics

7

Scientific paper

We consider the chaotic inflationary scenario in models with flat directions. We find that unless the scalars along the flat directions have vacuum expectation values <φ><~3Mpor 1014Mp<~<φ><~1015Mp depending on the expectation values of the chaotic inflator, Ψ, one or two or more periods of inflation occur but with a resulting energy density perturbation δϱ/ϱ⋍10-16, far too small to be of any consequence for galaxy formation. Even with <φ><~3-5 Mp only limited values of <Ψ>⋍(3-200)Mp result in inflation with reasonable density perturbations. Thus chaotic inflation in models with flat directions require rather special initial conditions.

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