paper

Critical comments on the paper "Crossing $I ¨ = - 1$ by a single scalar field on a Dvali-Gabadadze-Porrati brane" by H Zhang and Z-H Zhu [Phys.Rev.D75,023510(2007)]

arXiv:0812.1739 · doi:10.1103/PhysRevD.75.023510

Abstract

It is demonstrated that the claim in the paper "Crossing $I ¨ = - 1$ by a single scalar field on a Dvali-Gabadadze-Porrati brane" by H Zhang and Z-H Zhu [Phys.Rev.D75,023510(2007)], about a prove that there do not exist scaling solutions in a universe with dust in a Dvali-Gabadadze-Porrati (DGP) braneworld scenario, is incorrect.

5 pages, 8 eps figures

Critical comments on the paper "Crossing I¨=−1 by a single scalar field on a Dvali-Gabadadze-Porrati brane" by H Zhang and Z-H Zhu [Phys.Rev.D75,023510(2007)]

Abstract

Critical comments on the paper "Crossing $I ¨ = - 1$ by a single scalar field on a Dvali-Gabadadze-Porrati brane" by H Zhang and Z-H Zhu [Phys.Rev.D75,023510(2007)]