标题： 全息非微扰修正对规范耦合的影响 显示英文标题

标题： Holographic non-perturbative corrections to gauge couplings

摘要： 我们通过考虑D-瞬子对垂直于D7膜方向的轴子-稀释子场发射的贡献，直接从微观角度推导出对应于I'理论中四个D7膜的F理论背景。轴子-稀释子与D-瞬子模的耦合修改了其经典源项，这些源项被证明与D7膜手征环的元素成比例。通过非微扰修正的源项求解体场方程，得到完整的F理论背景。该解代表了位于I'理论探测D3膜上的四维理论的引力对偶，即N=2, Sp(1) SYM理论，具有Nf=4。我们的结果提供了该理论非微扰引力对偶的显式微观推导。它们还解释了最近的观察结果，即该理论的精确耦合可以完全从其微扰部分加上对支撑其味自由度的D7膜上手征环的知识重建出来。 显示英文摘要

摘要： We give a direct microscopic derivation of the F-theory background that corresponds to four D7 branes of type I' theory by taking into account the D-instanton contributions to the emission of the axio-dilaton field in the directions transverse to the D7's. The couplings of the axio-dilaton to the D-instanton moduli modify its classical source terms which are shown to be proportional to the elements of the D7 brane chiral ring. Solving the bulk field equations with the non-perturbatively corrected sources yields the full F-theory background. This solution represents the gravitational dual of the four-dimensional theory living on a probe D3 brane of type I', namely of the N=2, Sp(1) SYM theory with Nf=4. Our results provide an explicit microscopic derivation of the non-perturbative gravitational dual of this theory. They also explain the recent observation that the exact coupling for this theory can be entirely reconstructed from its perturbative part plus the knowledge of the chiral ring on the D7 branes supporting its flavor degrees of freedom.