论文标题
ADS4 Orientifold真空及其弱重力猜想中的膜
Membranes in AdS4 orientifold vacua and their Weak Gravity Conjecture
论文作者
论文摘要
我们研究了IIA型的Erientifold压缩，并带有通量，从而产生了稳定的，非苏型对称广告$ _4 $ _4 $ vacua，d6-brane仪表扇区。如果在六个内部尺寸上包裹在$ x_6 $上的D8-BRANES可以介导非扰动的不稳定性，如果它们减少到4D膜，而充电$ Q $大于其张力$ t $。不匹配$ q \ neq t $是由于i）曲率校正和ii）d6-branes包装3个循环的bion反应，$ x_6 $。我们在环形方向上的第二个效应给出了简单的表达，并发现只有SU（2）角的3个周期对的成对有助于它。他们要么根据3循环的分离贡献$ q> t $或$ q <t $，因此可以设计4D $ \ MATHCAL {n} = 0 $ vacua atention张力，而膜的重力较弱。
We study type IIA orientifold compactifications with fluxes that give rise to perturbatively stable, non-supersymmetric AdS$_4$ vacua with D6-brane gauge sectors. Non-perturbative instabilities can be mediated by D8-branes wrapped on the six internal dimensions $X_6$, if they reduce to 4d membranes with a charge $Q$ larger than its tension $T$. The mismatch $Q \neq T$ arises due to i) curvature corrections and ii) the BIon backreaction of D6-branes wrapping 3-cycles of $X_6$. We give a simple expression for the second effect in toroidal orientifolds, and find that only pairs of 3-cycles at SU(2) angles contribute to it. They either contribute towards $Q>T$ or $Q<T$ depending on the 3-cycles separation, allowing to engineer 4d $\mathcal{N}=0$ vacua in tension with the Weak Gravity Conjecture for membranes.
