arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0905.0477hep-th
收藏

黑洞和非相对论引力的FRW几何

The black hole and FRW geometries of non-relativistic gravity

Alex Kehagias, Konstadinos Sfetsos

摘要:

我们考虑最近提出的非相对论性的Hoglava-Lifshitz四维引力理论。本文研究了该理论的一个特殊极限,它允许平坦Minkowski真空,并深入讨论了它周围的二次涨落,发现度规存在两个传播极化。然后,我们明确构建一个球对称的,渐近平坦的,黑洞解,代表GR的史瓦西解的模拟。我们表明,这个理论具有相同的牛顿和后牛顿的限制GR,因此,它通过了经典的测试。我们还考虑均匀和各向同性的宇宙学的解决方案,我们表明,虽然方程是相同的GR宇宙学,耦合所观察到的原始丰度的${}^4{\rm He}$。

英文摘要:

We consider the recently proposed non-relativistic Hořava-Lifshitz four-dimensional theory of gravity. We study a particular limit of the theory which admits flat Minkowski vacuum and we discuss thoroughly the quadratic fluctuations around it. We find that there are two propagating polarizations of the metric. We then explicitly construct a spherically symmetric, asymptotically flat, black hole solution that represents the analog of the Schwarzschild solution of GR. We show that this theory has the same Newtonian and post-Newtonian limits as GR and thus, it passes the classical tests. We also consider homogeneous and isotropic cosmological solutions and we show that although the equations are identical with GR cosmology, the couplings are constrained by the observed primordial abundance of ${}^4{\rm He}$.

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。

↑