标题： 特殊几何与$N=2$杂质真空调分析 显示英文标题

标题： Special geometry and perturbative analysis of $N=2$ heterotic vacua

摘要： 目标空间对偶性的要求以及非重整化定理的使用，对编码了$N=2$异质超弦真空低能有效作用的微扰先势函数施加了强烈的约束。 分析是在特殊几何学的背景下进行的，特殊几何学控制着矢量多重态的耦合。 本文内容保持在入门水平。 显示英文摘要

摘要： The requirement of target-space duality and the use of nonrenormalization theorems lead to strong constraints on the perturbative prepotential that encodes the low-energy effective action of $N=2$ heterotic superstring vacua. The analysis is done in the context of special geometry, which governs the couplings of the vector multiplets. The presentation is kept at an introductory level.