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arXiv 0811.3781hep-th
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弯曲时空中几何起源的质量自旋2场

Massive Spin-2 fields of Geometric Origin in Curved Spacetimes

V. P. Nair, S. Randjbar-Daemi, V. Rubakov

摘要:

本文研究了一个包含有挠率和度规的动力学场模型的相容性,该模型的谱中含有质量为2的自旋粒子。大质量自旋2模存在于挠率中,而不是度规中。在闵可夫斯基背景下,该模型是无超光速粒子和鬼影的。我们发现,这个属性仍然有效,没有其他的病理出现在德西特和反德西特背景,我们的一些结果扩展到任意爱因斯坦空间背景。这表明该模型是一致的,至少在经典水平上,不像,例如,Fierz-Pauli理论

英文摘要:

We study the consistency of a model which includes torsion as well as the metric as dynamical fields and has massive spin-2 particle in its spectrum. The massive spin-2 mode resides in the torsion, rather than in the metric. It is known that this model is tachyon- and ghost-free in Minkowski background. We show that this property remains valid and no other pathologies emerge in de Sitter and anti-de Sitter backgrounds, with some of our results extending to arbirary Einstein space backgrounds. This suggests that the model is consistent, at least at the classical level, unlike, e.g., the Fierz--Pauli theory.

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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