论文标题
F（t，b）重力中的宇宙弹跳解决方案
Cosmological bouncing solutions in f(T,B) gravity
论文作者
论文摘要
电触电引力通过将Levi-Civita连接与Weitzenböck的连接交换，从而可以根据扭力进行重新设计重力，该连接描述了扭转而不是曲率。出乎意料的是，可以配制远程平行的重力等效于适当的设置的一般相对论。我们的兴趣在于探索该理论的扩展，其中Lagrangian采用$ f（t，b）$的形式，其中T和B是两个标量，表征了与一般相对论的等效性。在这项工作中，我们探索了使用这种重力方法来复制弗里德曼 - 罗伯逊 - 罗伯逊 - 罗伯逊 - 罗伯逊步行者的几何形状中众所周知的宇宙弹跳场景。我们研究了能够重建对称，振荡，超级弹跳，物质弹跳和单数弹跳设置的分析解决方案的引力lagrangians的类型。这些新的宇宙学启发的模型可能会对其他宇宙学量表的重力现象产生影响。
Teleparallel Gravity offers the possibility of reformulating gravity in terms of torsion by exchanging the Levi-Civita connection with the Weitzenböck connection which describes torsion rather than curvature. Surprisingly, Teleparallel Gravity can be formulated to be equivalent to general relativity for a appropriate setup. Our interest lies in exploring an extension of this theory in which the Lagrangian takes the form of $f(T,B)$ where T and B are two scalars that characterize the equivalency with general relativity. In this work, we explore the possible of reproducing well-known cosmological bouncing scenarios in the flat Friedmann-Lemaître-Robertson-Walker geometry using this approach to gravity. We study the types of gravitational Lagrangians which are capable of reconstructing analytical solutions for symmetric, oscillatory, superbounce, matter bounce, and singular bounce settings. These new cosmologically inspired models may have an effect on gravitational phenomena at other cosmological scales.
