Phantom-Like Effects on Warped DGP Brane

• 来源期刊: 理论物理通讯(英文版)
• 学科: 物理学
• 关键词: 扭曲 膜 闵可夫斯基 方程参数 宇宙学 紧流形 重力
• 年，卷（期）: 2010,（10）
• 页码范围: 773-780
• 页数: 8页
• 分类号: O437 TQ028.8
• 语种: 英文

摘要

We study phantom-like effect on the DGP brane embedded in a five-dimensional AdS bulk.We show thatthis effect can be realized without phantom matter on this warped DGP brane.We investigate the role played by thebulk cosmological constant on the phantom-like effect on the brane and we show that it tends to reduce this effect.Also,warped compactification of the bulk manifold increases the values of the effective and total equation of state parametersof the model relative to the case with Minkowski bulk.We extend our study to the case that induced curvature on thebrane is modified in the spirit of the f(R)-gravity.