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arXiv 1709.04847hep-th
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质量引力、正则结构和规范对称性

Massive gravity, canonical structure and gauge symmetry

Zahra Molaee, Ahmad Shirzad

摘要:

在全相空间中对有质量引力[9]进行哈密顿分析,我们看到该理论是无鬼的。我们还更清楚地看到,这个结果是相互作用项的内在结果,不依赖于所涉及的变量。由于没有第一类约束出现,理论似乎缺乏规范对称性。我们表明,这是由于辅助场的存在下,和对称性可能会体现在Stuckelberg制定。给出了该模型中规范变换的生成泛函。

英文摘要:

Performing Hamiltonian analysis of the massive gravity [9] in full phase space, we see that the theory is ghost free. We also see in a more clear way that this result is intrinsic of the interaction term and does not depend on the variables involved. Since no first class constraint emerges, the theory seems to lack gauge symmetry. We show that this is due to the presence of an auxiliary field, and the symmetry may be manifest in the Stuckelberg formulation. We give the generating functional of gauge transformation in this model.

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