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arXiv · 0707.1982

Nflation: observable predictions from the random matrix mass spectrum

Soo A Kim·Andrew R Liddle
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Abstract

We carry out numerical investigations of the perturbations in Nflation models where the mass spectrum is generated by random matrix theory. The tensor-to-scalar ratio and non-gaussianity are already known to take the single-field values, and so the density perturbation spectral index is the main parameter of interest. We study several types of random field initial conditions, and compute the spectral index as a function of mass spectrum parameters. Comparison with microwave anisotropy data from the Wilkinson Microwave Anisotropy Probe shows that the model is currently viable in the majority of its parameter space.

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Soo A Kim, Andrew R Liddle. 2007-09-24. Nflation: observable predictions from the random matrix mass spectrum. https://doi.org/10.1103/physrevd.76.063515

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