In a previous work, we have shown that, like BPS Dp branes, bulk gravity gets decoupled from the brane even for the non-susy Dp branes of type II string theories indicating a possible extension of AdS/CFT correspondence for the non-supersymmetric case. In that work, the decoupling of gravity on the non-susy Dp branes has been shown numerically for the general case as well as analytically for some special case. Here we discuss the decoupling limit and the throat geometry of the non-susy D3 brane when the charge associated with the brane is very large. We show that in the decoupling limit the throat geometry of the non-susy D3 brane, under appropriate coordinate change, reduces to the Constable-Myers solution and thus confirming that this solution is indeed the holographic dual of a (non-gravitational) gauge theory discussed there. We also show that when one of the parameters of the solution takes a specific value, it reduces, under another coordinate change, to the five-dimensional solution obtained by Csaki and Reece, again confirming its gauge theory interpretation.
The Hot Attractor Mechanism: Decoupling Without Deep Throats
$\mathcal{N}=2$超引力中的非极值黑洞具有两个视界，其面积的几何平均值恢复了取光滑零温度极限时极值黑洞的视界面积.在以前的工作（arxiv：1410.3478），使用吸引子机制，我们推导出存在几个模独立的不变量从平均在一个解耦的层间区域。我们建立了在Reissner-Nordström点的非极值几何，在那里的标量模量保持固定，可以解除超引力与近地平线的AdS $_3\times$ S $^2$的解决方案。这些解具有与原始黑洞相同的熵和温度，因此可以用CFT $_2$来解释潜在的引力自由度。模空间的对称性使我们能够在极值极限中解释熵的起源。
Intersecting branes, Higgs sector, and chirality from $\mathcal{N}=4$ SYM with soft SUSY breaking
考虑具有三次和二次超对称软破缺势的$SU(N)$ $\mathcal{N}=4$ super Yang-Mills，使得整体$SU(4)_R$破缺为$SU(3)$或更进一步.正如最近所显示的，这种设置支持一组丰富的非平凡真空与6个额外维度的自相交$SU(3)$膜的几何。这些膜上的零模可以解释为3代玻色子和手征费米子弦在它们的交叉点连接膜。在这里，我们发现了一大类的精确解由希格斯凝聚连接的膜，导致汤川耦合之间的手征费米子零模式。在一定的退耦条件下，希格斯粒子在膜上的反作用完全消失。由此产生的物理学是一个自发破裂的手征规范理论的膜通量。特别是，我们确定组合膜加希格斯配置，导致规范场耦合到手征费米子在低能量。事实证明，这非常接近标准模型及其通过弦论中的膜的构造。作为一个副产品，我们构造了一个$G_2$ -膜的解决方案，对应于一个压缩的模糊余伴随轨道的$G_2$。
