TeVeS的幂律解
Power-law solutions for TeVeS
摘要:
TeVeS在均匀和各向同性的宇宙中的动力学被证明是等价于一个相互作用的两个组件系统的动力学,由一个标量场和一个“流体”,有关的物质部分,明确给出耦合项。标度的解决方案(解决方案的能量密度的两个组件的恒定比例)在“爱因斯坦框架”中发现,这是指数膨胀或收缩,没有剩余的自由贝肯斯坦的$F$功能。在“物理框架”中,这些解是幂律型的。一个等效的广义相对论(GR)的动态图像表明,它是标量场扮演的角色暗物质,而“物质”必须模仿(幻影型)暗能量。
英文摘要:
The dynamics of TeVeS in a homogeneous and isotropic universe is shown to be equivalent to the dynamics of an interacting two-component system, consisting of a scalar field and a "fluid", related to the matter part, with explicitly given coupling term. Scaling solutions (solutions with a constant ratio of the energy densities of both components) in the "Einstein frame" are found which are exponentially expanding or contracting with no remaining freedom for Bekenstein's $F$ function. In the "physical frame" these solutions are of the power-law type. An equivalent General Relativity (GR) picture of the dynamics suggests that it is the scalar field which plays the role of dark matter, while the "matter" has to mimic (phantom-type) dark energy.
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。