English

Eternal observers and bubble abundances in the landscape

High Energy Physics - Theory 2009-11-11 v1 Astrophysics General Relativity and Quantum Cosmology

Abstract

We study a class of ``landscape'' models in which all vacua have positive energy density, so that inflation never ends and bubbles of different vacua are endlessly ``recycled''. In such models, each geodesic observer passes through an infinite sequence of bubbles, visiting all possible kinds of vacua. The bubble abundance pjp_j can then be defined as the frequency at which bubbles of type jj are visited along the worldline of an observer. We compare this definition with the recently proposed general prescription for pjp_j and show that they give identical results.

Keywords

Cite

@article{arxiv.hep-th/0605015,
  title  = {Eternal observers and bubble abundances in the landscape},
  author = {Vitaly Vanchurin and Alexander Vilenkin},
  journal= {arXiv preprint arXiv:hep-th/0605015},
  year   = {2009}
}