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arXiv 0705.0548gr-qc
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从五维真空修正的Brans-Dicke引力理论

Modified Brans-Dicke theory of gravity from five-dimensional vacuum

Jose Edgar Madriz Aguilar, Carlos Romero, Adriano Barros

摘要:

我们调查,在五维(5D)的Brans-Dicke引力理论的背景下,宏观物质配置可以产生从纯真空在五维的想法,一种方法首先提出的框架中的广义相对论。我们表明,5D的Brans-Dicke真空方程时,减少到四维导致一个修改版本的Brans-Dicke理论在四维(4D)。作为该方法的应用,我们得到了四维O 'Hanlon和Tupper真空解的两个五维扩展,并证明了它们在四维中导致了两种不同的宇宙学情形.

英文摘要:

We investigate, in the context of five-dimensional (5D) Brans-Dicke theory of gravity, the idea that macroscopic matter configurations can be generated from pure vacuum in five dimensions, an approach first proposed in the framework of general relativity. We show that the 5D Brans-Dicke vacuum equations when reduced to four dimensions lead to a modified version of Brans-Dicke theory in four dimensions (4D). As an application of the formalism, we obtain two five-dimensional extensions of four-dimensional O'Hanlon and Tupper vacuum solution and show that they lead two different cosmological scenarios in 4D.

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