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arXiv 1105.3735hep-thgr-qc
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大质量引力的理论问题

Theoretical Aspects of Massive Gravity

Kurt Hinterbichler

摘要:

由于最近的进展已经克服了传统的问题,大质量引力已经看到了兴趣的复苏,为解决重要的开放问题,如宇宙学常数自然性问题提供了一条途径。在过去的70年里,人们断断续续地研究了大质量引力子的可能性。在此期间,诸如vDVZ不连续性和Boulware-Deser幽灵等好奇心被发现。我们重新推导这些结果在教学的方式,并发展Stükelberg形式主义,讨论他们从现代有效场论的观点。我们回顾了最近十年的最新进展,包括vDVZ不连续性通过Vainshtein屏蔽机制的溶解,存在一个一致的有效场论与引力子质量和截止之间的稳定层次,和存在的特殊相互作用,提高最大有效场论截止和消除鬼。此外,我们还回顾了弯曲空间中大质量引力子的一些特性,三维空间中的新理论,以及从额外维度和膜世界中出现大质量引力子的例子。

英文摘要:

Massive gravity has seen a resurgence of interest due to recent progress which has overcome its traditional problems, yielding an avenue for addressing important open questions such as the cosmological constant naturalness problem. The possibility of a massive graviton has been studied on and off for the past 70 years. During this time, curiosities such as the vDVZ discontinuity and the Boulware-Deser ghost were uncovered. We re-derive these results in a pedagogical manner, and develop the Stükelberg formalism to discuss them from the modern effective field theory viewpoint. We review recent progress of the last decade, including the dissolution of the vDVZ discontinuity via the Vainshtein screening mechanism, the existence of a consistent effective field theory with a stable hierarchy between the graviton mass and the cutoff, and the existence of particular interactions which raise the maximal effective field theory cutoff and remove the ghosts. In addition, we review some peculiarities of massive gravitons on curved space, novel theories in three dimensions, and examples of the emergence of a massive graviton from extra-dimensions and brane worlds.

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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