N = 2叶栅的再研究和增强轴承
The N=2 cascade revisited and the enhancon bearings
摘要：
在非孤立的卡-丘奇点上，分数膜产生的具有变化通量的超重力背景，至今还没有得到精确的对偶场论解释。在目前的工作中，考虑到这种模型的典型例子，C * C^2/Z_2轨道，我们提出了这个问题的一个解决方案，并表明，已知的级联解决方案对应于一个真空的库仑分支上的相应的规范规范理论，涉及一系列强耦合跃迁联想到N = 2 SQCD的重子根。我们还发现了一个轻微的修改后，预计质量变形流到Klebanov-Strassler级联的级联真空。最后，我们讨论了一个无限类的真空库仑分支的RG流包括无限耦合的共形制度，并解释其引力表现形式的新的几何结构，我们称之为增强轴承。明确地提供了我们所分析的所有真空的无斥力背景。
英文摘要：
Supergravity backgrounds with varying fluxes generated by fractional branes at non-isolated Calabi-Yau singularities had escaped a precise dual field theory interpretation so far. In the present work, considering the prototypical example of such models, the C*C^2/Z_2 orbifold, we propose a solution for this problem, and show that the known cascading solution corresponds to a vacuum on the Coulomb branch of the corresponding quiver gauge theory involving a sequence of strong coupling transitions reminiscent of the baryonic root of N=2 SQCD. We also find a slight modification of this cascading vacuum which upon mass deformation is expected to flow to the Klebanov-Strassler cascade. Finally, we discuss an infinite class of vacua on the Coulomb branch whose RG flows include infinitely coupled conformal regimes, and explain their gravitational manifestation in terms of new geometric structures that we dub enhancon bearings. Repulson-free backgrounds dual to all the vacua we analyse are explicitly provided.
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