论文标题
强耦合的4D字符串
4d strings at strong coupling
论文作者
论文摘要
与重力耦合的4D EFT的弱耦合区域特别适合描述BPS基本轴子字符串的反应，称为EFT弦，在其核心周围的局部时空斑块中。我们研究了这些局部解决方案对全球溶液的扩展，这意味着探测了强耦合的区域，并提供了其中的EFT弦乐张力的估计。我们猜想对于EFT字符串充电发电机，这种全局扩展总是可能的，并产生了次级张力的张力。我们通过分析由IIA型或异源字符串理论的NS5-branes包裹的calabi-yau三重除法的4D弦组成的4D字符串的全球解决方案来证实这一主张。我们认为，在这种情况下，正如我们在显式示例中所证明的那样，可以简单地根据描述紧凑型的GLSM来编码全局的非扰动数据。
Weakly coupled regions of 4d EFTs coupled to gravity are particularly suitable to describe the backreaction of BPS fundamental axionic strings, dubbed EFT strings, in a local patch of spacetime around their core. We study the extension of these local solutions to global ones, which implies probing regions of strong coupling and provides an estimate of the EFT string tension therein. We conjecture that for the EFT string charge generators such a global extension is always possible and yields a sub-Planckian tension. We substantiate this claim by analysing global solutions of 4d strings made up from NS5-branes wrapping Calabi-Yau threefold divisors in either type IIA or heterotic string theory. We argue that in this case the global, non-perturbative data of the backreaction can be simply encoded in terms of a GLSM describing the compactification, as we demonstrate in explicit examples.
