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arXiv 1306.5854math-phhep-thmath.MP
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有边界时线性场论的哈密顿处理:几何方法

Hamiltonian treatment of linear field theories in the presence of boundaries: a geometric approach

J. Fernando Barbero G., Jorge Prieto, Eduardo J. S. Villaseñor

摘要:

本文的目的是详细研究在空间边界存在的标量场和电磁场的哈密顿和辛拉格朗日描述的约束结构。我们仔细讨论了Gotay,内斯特和Hinds的几何约束算法的实施,特别强调相关的功能分析方面的问题。这是严格理解存在边界的一般场论的重要一步,特别是当边界不规则时。当存在规范对称性和边界时,本文中开发的几何方法对于解释物理自由度和约束的性质也是有用的。

英文摘要:

The purpose of this paper is to study in detail the constraint structure of the Hamiltonian and symplectic-Lagrangian descriptions for the scalar and electromagnetic fields in the presence of spatial boundaries. We carefully discuss the implementation of the geometric constraint algorithm of Gotay, Nester and Hinds with special emphasis on the relevant functional analytic aspects of the problem. This is an important step towards the rigorous understanding of general field theories in the presence of boundaries, very especially when these fail to be regular. The geometric approach developed in the paper is also useful with regard to the interpretation of the physical degrees of freedom and the nature of the constraints when both gauge symmetries and boundaries are present.

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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