arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1504.07683gr-qchep-th
收藏

遥平行Action的自旋连接和重正化

Spin Connection and Renormalization of Teleparallel Action

Martin Krššák, J. G. Pereira

摘要:

在广义相对论中,惯性和引力都包含在列维-奇维塔联系中。因此,引力作用量以及相应的能量-动量密度一般都被来自惯性效应的虚假贡献所污染。另一方面,在远平行引力中,由于自旋联系只代表惯性效应,所以有可能将惯性与引力分开。依赖于这个属性,它表明,每个四分体有自然相关的自旋连接,局部删除的惯性效应的行动。适当的自旋联系的使用可以被看作是一个重正化过程,在这个意义上,能量和动量的计算自然会产生物理上相关的值。本文提出了一种求解场方程和确定自旋连接的自洽方法。

英文摘要:

In general relativity, inertia and gravitation are both included in the Levi-Civita connection. As a consequence, the gravitational action, as well as the corresponding energy-momentum density, are in general contaminated by spurious contributions coming from inertial effects. In teleparallel gravity, on the other hand, because the spin connection represents inertial effects only, it is possible to separate inertia from gravitation. Relying on this property, it is shown that to each tetrad there is naturally associated a spin connection that locally removes the inertial effects from the action. The use of the appropriate spin connection can be viewed as a renormalization process in the sense that the computation of energy and momentum naturally yields the physically relevant values. A self-consistent method for solving field equations and determining the appropriate spin connection is presented.

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。

↑