Accelerating universe in brane gravity

详细信息    查看全文

• 作者：K. Atazadeh ; M. Farhoudi ; H.R. Sepangi
• 关键词：Harari– ; Shupe preon model ; Phase space ; Clifford algebra
• 刊名：Physics Letters B
• 出版年：2008
• 出版时间：28 February 2008
• 年：2008
• 卷：660
• 期：4
• 页码：275-281
• 全文大小：269 K

文摘

We study a 5-dimensional href=""/science?_ob=MathURL&_method=retrieve&_udi=B6TVN-4RM7MV2-1&_mathId=mml5&_user=10&_cdi=5539&_rdoc=2&_acct=C000050221&_version=1&_userid=10&md5=09e3928fb1e1e0e142c85720af34cbce"">rc=""http://www.sciencedirect.com/cache/MiamiImageURL/B6TVN-4RM7MV2-1-29/0?wchp=dGLbVzW-zSkzV"" alt=""Click to view the MathML source"" align=""absbottom"" border=""0"" height=15 width=37> brane gravity within the framework of scalar-tensor type theories. We show that such a model predicts, for a certain choice of href=""/science?_ob=MathURL&_method=retrieve&_udi=B6TVN-4RM7MV2-1&_mathId=mml6&_user=10&_cdi=5539&_rdoc=2&_acct=C000050221&_version=1&_userid=10&md5=488a47b3add64e6678412087d4b58637"">rc=""http://www.sciencedirect.com/cache/MiamiImageURL/B6TVN-4RM7MV2-1-2P/0?wchp=dGLbVzW-zSkzV"" alt=""Click to view the MathML source"" align=""absbottom"" border=""0"" height=15 width=37> and a spatially flat universe, an exponential potential, leading to an accelerated expanding universe driven solely by the curvature of the bulk space. This result is consistent with the observational data in the cosmological scale.