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arXiv 2201.01108math-phmath.MP
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广义标架丛上的Dirac旋量:Einstein-Cartan-Dirac理论的标架丛表述

Dirac Spinors on Generalised Frame Bundles: a frame bundle formulation for Einstein-Cartan-Dirac theory

Jérémie Pierard de Maujouy

摘要:

我们澄清了在Hélein和Vey的命题中获得的结构,该命题是从无结构可微的10-流形出发的标架丛上制定的爱因斯坦-嘉当引力的变分原理(arXiv:1508.07765v2 [math-ph])。所得到的结构局部等价于一个框架丛。我们表明,在全球性的假设下的形式主义允许产生变分原理,诱导一个框架丛结构的纤维化的基础流形和变分原理上的基础流形。我们的角度来看,该模型允许我们扩展的爱因斯坦-Cartan模型的爱因斯坦-Cartan-狄拉克理论,其中包括一个狄拉克旋量场耦合到扭转场。

英文摘要:

We clarify the structure obtained in Hélein and Vey's proposition for a variational principle for the Einstein-Cartan gravitation formulated on a frame bundle starting from a structure-less differentiable 10-manifold (arXiv:1508.07765v2 [math-ph]). The obtained structure is locally equivalent to a frame bundle. We show that under global hypotheses the formalism allows to produce variational principles which induce a frame bundle structure with a fibration over a base manifold and a variational principle on the base manifold. Our perspective on the model allows us to extend the Einstein-Cartan model to the Einstein-Cartan-Dirac theory which includes a Dirac spinor field coupled to the torsion field.

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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