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arXiv 2004.10505gr-qc
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与静态时空对偶的黎曼流形

Riemannian manifolds dual to static spacetimes

Carolina Figueiredo, José Natário

摘要:

我们在静态时空和黎曼流形之间建立了一对一的对应关系,将因果测地线映射到测地线,正如L。C.爱泼斯坦然后,我们探索常曲率时空--如德西特和反德西特宇宙--并发现它们映射到常曲率黎曼流形,即欧几里得空间、球面和双曲空间。通过施加映射到球所需的条件,我们得到的球对称度量,有一个独立的振幅周期的径向振荡运动。然后,我们考虑的情况下,一个完美的流体和爱因斯坦集群,并确定所需的压力和密度分布找到这种类型的运动。最后,我们给出的例子,表面对应于某些类型的运动的度量,不表现出恒定的曲率,如史瓦西,史瓦西德西特和史瓦西反德西特解决方案,甚至一个简化的模型的虫洞。

英文摘要:

We establish a one-to-one correspondence between static spacetimes and Riemannian manifolds that maps causal geodesics to geodesics, as suggested by L. C. Epstein. We then explore constant curvature spacetimes - such as the de Sitter and the anti-de Sitter universes - and find that they map to constant curvature Riemannian manifolds, namely the Euclidean space, the sphere and the hyperbolic space. By imposing the conditions required to map to the sphere, we obtain the spherically symmetric metrics for which there is radial oscillatory motion with a period independent of the amplitude. We then consider the case of a perfect fluid and an Einstein cluster and determine the pressure and density profiles required to find this type of motion. Finally, we give examples of surfaces corresponding to certain types of motion for metrics that do not exhibit constant curvature, such as the Schwarzschild, Schwarzschild de Sitter and Schwarzschild anti-de Sitter solutions, and even for a simplified model of a wormhole.

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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