arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1201.0286gr-qchep-th
收藏

Einstein-Cartan理论的平方挠修正

A square-torsion modification of Einstein-Cartan theory

Luca Fabbri, Stefano Vignolo, Cosimo Stornaiolo

摘要:

在本文中,我们考虑的引力理论中,不仅曲率,而且挠率是明确存在于拉格朗日,都有自己的耦合常数。特别地,我们讨论了狄拉克场和自旋流体的耦合:在狄拉克场的情况下,我们讨论了在我们的方法中,狄拉克自相互作用如何依赖于耦合常数作为一个参数,甚至可以使这些非线性表现在亚原子尺度上,根据我们指定的参数值显示不同的应用;在自旋流体的情况下,我们讨论FLRW宇宙模型所提出的理论。

英文摘要:

In the present paper we consider a theory of gravity in which not only curvature but also torsion is explicitly present in the Lagrangian, both with their own coupling constant. In particular, we discuss the couplings to Dirac fields and spin fluids: in the case of Dirac fields, we discuss how in our approach, the Dirac self-interactions depend on the coupling constant as a parameter that may even make these non-linearities manifest at subatomic scales, showing different applications according to the value of the parameter we have assigned; in the case of spin fluids, we discuss FLRW cosmological models arising from the proposed theory.

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。

↑