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arXiv 0712.3547hep-th
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引力理论中的不变守恒流:超态射和局部规范对称性

Invariant conserved currents in gravity theories: diffeomorphisms and local gauge symmetries

Yuri N. Obukhov, Guillermo F. Rubilar

摘要:

以前,我们已经开发了一种通用的方法来构建不变的保守电流和电荷的引力理论与拉格朗日下的时空同态和本地洛伦兹变换不变。这种方法现在被推广到当局部洛伦兹群被任意局部规范群取代的情况。具体的例子包括麦克斯韦场和杨-米尔斯场与阿贝尔和非阿贝尔局部内部对称的引力耦合,以及度量-仿射引力,其中局部洛伦兹时空群扩展到局部一般线性群。

英文摘要:

Previously, we have developed a general method to construct invariant conserved currents and charges in gravitational theories with Lagrangians that are invariant under spacetime diffeomorphisms and local Lorentz transformations. This approach is now generalized to the case when the local Lorentz group is replaced by an arbitrary local gauge group. The particular examples include the Maxwell and Yang-Mills fields coupled to gravity with Abelian and non-Abelian local internal symmetries, and the metric-affine gravity in which the local Lorentz spacetime group is extended to the local general linear group.

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