疯狂的反膜？
Insane Anti-Membranes?
摘要：
在最近的一系列论文中，反膜在各种超引力背景下的反反应被一些无法解释的通量奇点所激怒。所有的情况下，研究到目前为止，涉及背景（接近）广告渐近。本文的目的是研究反M2膜在具有不同UV行为的背景上的逆反应：我们认为11维超引力的所谓$\mathbb{A}_8$正则解具有“Taub-NUT型”渐近性。事实证明，某些次引导红外奇点是不可避免的;它们不能自然地归因于反膜在此背景下的反作用。此外，我们的构型不涉及涂抹膜。这进一步证实了贝纳等人的工作，他们认为遇到的奇点绝不是涂抹的残余，一旦考虑膜极化，涂抹就会被冲走。
英文摘要：
The backreactions of anti-branes on a variety of supergravity backgrounds have been shown in a recent series of papers to be riled by some unexplained flux singularities. All of the situations studied so far involve backgrounds with (close to) AdS-asymptotics. It is the purpose of this work to study the backreaction of anti-M2 branes on a background exhibiting a different UV behavior: The so-called $\mathbb{A}_8$ regular solution of eleven-dimensional supergravity that we consider has "Taub-NUT type" asymptotics. As it turns out, some subleading infrared singularities are inevitable; they cannot be naturally ascribed to the anti-branes backreacting on this background. Moreover, our configuration does not involve smeared branes. This lends further credence to the work of Bena et al. suggesting that the singularities encountered are in no way remnants of smearing that would wash away once brane polarization is taken into account.
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