Critical comments on the paper "Crossing $\omega=-1$ by a single scalar field on a Dvali-Gabadadze-Porrati brane" by H Zhang and Z-H Zhu [Phys.Rev.D75,023510(2007)]
Abstract
It is demonstrated that the claim in the paper "Crossing $\omega=-1$ 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.
- Publication:
-
arXiv e-prints
- Pub Date:
- December 2008
- DOI:
- 10.48550/arXiv.0812.1739
- arXiv:
- arXiv:0812.1739
- Bibcode:
- 2008arXiv0812.1739Q
- Keywords:
-
- General Relativity and Quantum Cosmology
- E-Print:
- 5 pages, 8 eps figures