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arXiv 1503.04882gr-qcastro-ph.COhep-th
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Rastall标量张量理论

A Rastall Scalar-Tensor theory

T. Caramês, M. H. Daouda J. C. Fabris, A. M. Oliveira, O. F. Piattella, V. Strokov

摘要:

我们制定了一个理论相结合的原则标量张量引力和Rastall建议违反通常的守恒定律。在所得到的Brans-Dicke-Rastall(BDR)理论中,除了平凡的Schwarzschild解之外,唯一精确的、静态的、球对称的解是Robinson-Bertotti型解。对于某些自由参数值,PPN约束可以完全满足,宇宙学解显示出物质主导相的减速-加速转变。

英文摘要:

We formulate a theory combining the principles of a scalar-tensor gravity and the Rastall proposal of a violation of the usual conservation laws. In the resulting Brans-Dicke-Rastall (BDR) theory the only exact, static, spherically symmetric solution is a Robinson-Bertotti type solution besides the trivial Schwarzschild one. The PPN constraints can be completely satisfied for some values of the free parameters.The cosmological solutions display, among others, a decelerate-accelerate transition in the matter dominated phase.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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