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Phantom-Like Effects on Warped DGP Brane

Phantom-Like Effects on Warped DGP Brane
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摘要 We study phantom-like effect on the DGP brane embedded in a five-dimensional AdS bulk. We show that this effect can be realized without phantom matter on this warped DGP brahe. We investigate the role played by the bulk 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 parameters of the model relative to the case with Minkowski bulk. We extend our study to the ease that induced curvature on the brahe is modified in the spirit of the f(R)-gravity.
机构地区 Department of Physics
出处 《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第10期773-780,共8页 理论物理通讯(英文版)
关键词 Braneworld cosmology dark energy models warped DGP scenario modified gravity 扭曲 闵可夫斯基 方程参数 宇宙学 紧流形 重力
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