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arXiv 1202.3789hep-th
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关于弯曲喉道中反膜奇点的一个注记

A comment on anti-brane singularities in warped throats

Stefano Massai

摘要:

我们计算的虚自对偶(ISD)和虚反自对偶(IASD)通量的Klebanov-Strassler背景扰动的堆叠的p反D3膜。我们表明,在线性顺序p,他们都有一个奇异的近膜区域。虽然人们可以争辩说,IASD流量可能会消失在完全非线性的水平,没有这样的论点存在的ISD模式。与反D 6反反应的类比表明,一旦考虑到完全的反反应,这种奇异性可能会存在,并且可能是反膜解的普遍特征。

英文摘要:

We compute the imaginary self-dual (ISD) and imaginary anti-self-dual (IASD) fluxes for the Klebanov-Strassler background perturbed by a stack of p anti-D3 branes. We show that, at linear order in p, they both have a singularity in the near-brane region. While one can argue that the IASD flux may disappear at full non-linear level, no such argument exists for the ISD mode. An analogy with anti-D6 backreaction suggests that such singularity may survive once full backreaction is taken into account and may be a universal feature of anti-brane solutions.

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