Inflation in multi-field modified DBM potentials

被引:14
|
作者
Paban, Sonia [1 ]
Rosati, Robert [1 ]
机构
[1] Univ Texas Austin, Dept Phys, Theory Grp, Austin, TX 78712 USA
基金
美国国家科学基金会;
关键词
inflation; cosmology of theories beyond the SM; DENSITY PERTURBATIONS; MODELS;
D O I
10.1088/1475-7516/2018/09/042
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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) 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.
引用
收藏
页数:30
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