论文标题
D-Instanton诱导的超电势
D-instanton Induced Superpotential
论文作者
论文摘要
我们使用字符串场理论来固定D-instanton校正的归一化，以涉及在没有磁通的情况下在Calabi-yau三倍的Erientifold上压实的II型字符串理论的模量场。我们专注于$ o（1）$ instantons，其仅零模式是与intsanton在非compact方向上翻译相关的四个骨气模式，以及一对与Instanton损坏的两个增压相关的Fermionic零模式。我们使用通用的超宪法领域理论，并根据Instanton上的开放字符串的频谱表达答案。我们分析了这种多种多样的多工业对超电势的贡献，并认为当不存在背景通量时，它消失了。
We use string field theory to fix the normalization of the D-instanton corrections to the superpotential involving the moduli fields of type II string theory compactified on an orientifold of a Calabi-Yau threefold in the absence of fluxes. We focus on $O(1)$ instantons whose only zero modes are the four bosonic modes associated with translation of the instanton in non-compact directions and a pair of fermionic zero modes associated with the two supercharges broken by the instanton. We work with a generic superconformal field theory and express our answer in terms of the spectrum of open strings on the instanton. We analyse the contribution of multi-instantons of this kind to the superpotential and argue that it vanishes when background fluxes are absent.
