Multi-field Inflation with a Random Potential

@article{Tye2009MultifieldIW,
  title={Multi-field Inflation with a Random Potential},
  author={S. Tye and Jiajun Xu and Y. Zhang},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2009},
  volume={2009},
  pages={018-018}
}
Motivated by the possibility of inflation in the cosmic landscape, which may be approximated by a complicated potential, we study the density perturbations in multi-field inflation with a random potential. The random potential causes the inflaton to undergo a Brownian-like motion with a drift in the D-dimensional field space, allowing entropic perturbation modes to continuously and randomly feed into the adiabatic mode. To quantify such an effect, we employ a stochastic approach to evaluate the… Expand
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