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arXiv 1012.3209hep-thgr-qchep-ph
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渐近AdS三维重力场的Gribov模糊性

Gribov ambiguity in asymptotically AdS three-dimensional gravity

Andres Anabalon, Fabrizio Canfora, Alex Giacomini, Julio Oliva

摘要:

本文分析了具有负宇宙学常数的三维引力场的de Donder规范Faddeev-Popov算符的零模。据发现,三维AdS真空产生(无限多)规范化,光滑的Faddeev-Popov运营商的零模式。另一方面,我们发现BTZ黑洞(包括零质量黑洞)不产生零模。这与QCD中通常的Gribov问题不同,Gribov问题中接近最大对称真空时,Faddeev-Popov行列式是正定的,而离真空“足够远”时它可以为零。这表明零质量BTZ黑洞可能是一个合适的具有负宇宙学常数的三维引力基态。由于这一结果的运动学起源,它也适用于以AdS_3为最大对称解的其他三维协变引力理论,如新质量引力和拓扑质量引力。这些结果的超对称性打破的相关性指出。

英文摘要:

In this paper the zero modes of the de Donder gauge Faddeev-Popov operator for three dimensional gravity with negative cosmological constant are analyzed. It is found that the three dimensional AdS vacuum produces (infinitely many) normalizable, smooth zero modes of the Faddeev-Popov operator. On the other hand, it is found that the BTZ black hole (including the zero mass black hole) does not generate zero modes. This differs from the usual Gribov problem in QCD where close to the maximally symmetric vacuum, the Faddeev-Popov determinant is positive definite while "far enough" from the vacuum it can vanish. This suggests that the zero mass BTZ black hole could be a suitable ground state of three dimensional gravity with negative cosmological constant. Due to the kinematic origin of this result, it also applies for other covariant gravity theories in three dimensions with AdS_3 as maximally symmetric solution, such as new massive gravity and topologically massive gravity. The relevance of these results for SUSY breaking is pointed out.

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