A short review of "DGP Specteroscopy"

Antonio Padilla

doi:10.1088/1751-8113/40/25/S26

A short review of "DGP Specteroscopy"

High Energy Physics - Theory 2008-11-26 v2

Authors: Antonio Padilla

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Abstract

In this paper we provide a short review of the main results developed in hep-th/0604086. We focus on linearised vacuum perturbations about the self-accelerating branch of solutions in the DGP model. These are shown to contain a ghost in the spectrum for any value of the brane tension. We also comment on hep-th/0607099, where some counter arguments have been presented.

Keywords

DGP model self-accelerating branch ghost linearised perturbations brane tension vacuum perturbations

Cite

@article{arxiv.hep-th/0610093,
  title  = {A short review of "DGP Specteroscopy"},
  author = {Antonio Padilla},
  journal= {arXiv preprint arXiv:hep-th/0610093},
  year   = {2008}
}