Chaotic inflation

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Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988nuphb.298..701m&link_type=abstract

Nuclear Physics B, Volume 298, Issue 4, p. 701-725.

Physics

Nuclear Physics

22

Scientific paper

We investigate the conditions under which the chaotic inflationary model can provide sufficient inflation to solve the usual cosmological problems. We use a mixture of analytic and numerical techniques to examine the success of the model in cases where spatial curvatures of the background metric are large and when the scalar field lagrangian includes contributions from velocity terms and spatial gradients. Using the simplest natural measure on the space of initial conditions, we calculate the probability of obtaining sufficient inflation given random initial conditions when velocity terms and curvature terms are included. We find this probability to be large in all cases considered. We also derive conditions under which scalar field inhomogeneities will not affect the viability of inflation.

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