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arXiv 1509.09094hep-th
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利用外源的哈密顿表面电荷

Hamiltonian surface charges using external sources

Cedric Troessaert

摘要:

在这项工作中,我们解释的边界条件的一部分,作为外部来源,以解决可积性问题的计算表面电荷相关的规范对称性的哈密顿形式主义。我们首先描述的外部对称性的哈密顿结构保持行动的理论的外部来源的转换。然后,我们将这些结果扩展到计算表面电荷的非平凡边界条件的场论。

英文摘要:

In this work, we interpret part of the boundary conditions as external sources in order to solve the integrability problem present in the computation of surface charges associated to gauge symmetries in the hamiltonian formalism. We start by describing the hamiltonian structure of external symmetries preserving the action up to a transformation of the external sources of the theory. We then extend these results to the computation of surface charges for field theories with non-trivial boundary conditions.

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