English

Inflation in Multi-field Modified DBM Potentials

Cosmology and Nongalactic Astrophysics 2018-10-22 v2 High Energy Physics - Theory

Abstract

We study multi-field inflation in random potentials generated via a non-equilibrium random matrix theory process. We make a novel modification of the process to include correlations between the elements of the Hessian and the height of the potential, similar to a Random Gaussian Field (RGF). We present the results of over 50,000 inflationary simulations involving 5-100 fields. For the first time, we present results of O(100)\mathcal{O}(100) fields using the full `transport method', without slow-roll approximation. We conclude that Planck compatibility is a common prediction of such models, however significant isocurvature power at the end of inflation is possible.

Keywords

Cite

@article{arxiv.1807.07654,
  title  = {Inflation in Multi-field Modified DBM Potentials},
  author = {Sonia Paban and Robert Rosati},
  journal= {arXiv preprint arXiv:1807.07654},
  year   = {2018}
}

Comments

34 pages, 21 figures. Published version

R2 v1 2026-06-23T03:08:04.783Z