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arXiv 0901.1636math-phmath.MP
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有限维规范理论中的定域对称性

Local symmetries in gauge theories in a finite-dimensional setting

Michael Forger, Bruno L. Soares

摘要:

它表明,正确的数学实现的对称性的几何制定的经典场论导致自然超越李群的概念和他们的行动对流形,到境界的李群丛,更一般地说,李群胚和他们的行动对纤维丛。这不仅适用于处于规范理论核心的定域对称,而且当我们允许作为具有(可能)非平凡拓扑的丛的部分的场,或者甚至当这些场在拓扑上是平凡的,在没有优选平凡化的情况下,甚至对于全局对称也是如此。

英文摘要:

It is shown that the correct mathematical implementation of symmetry in the geometric formulation of classical field theory leads naturally beyond the concept of Lie groups and their actions on manifolds, out into the realm of Lie group bundles and, more generally, of Lie groupoids and their actions on fiber bundles. This applies not only to local symmetries, which lie at the heart of gauge theories, but is already true even for global symmetries when one allows for fields that are sections of bundles with (possibly) non-trivial topology or, even when these are topologically trivial, in the absence of a preferred trivialization.

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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