Instanton Calculus In R-R Background And The Topological String
Instanton Calculus In R-R Background And The Topological String
复制标题
R-R背景下的瞬子微积分和拓扑弦
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
A. Lerda
中科院分区：
文献类型：
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作者：
M. Billò;M. Frau;F. Fucito;A. Lerda
我们研究了Ramond-Ra- mond闭弦背景下的分数阶D3和D（-1）膜系统，证明了它描述了N = 2超杨-米尔斯理论的规范瞬子及其与N = 2超引力场引力光子的相互作用.特别是，我们分析的瞬子模空间使用弦理论的方法和计算的prepotential的有效规范理论利用的本地化方法的瞬子演算表明，这导致相同的信息给出的拓扑弦。我们还评论了我们的方法和所谓的背景之间的关系。
We study a system of fractional D3 and D(-1) branes in a Ramond-Ra- mond closed string background and show that it describes the gauge instantons of N = 2 super Yang-Mills theory and their interactions with the graviphoton of N = 2 supergravity. In particular, we analyze the instanton moduli space using string the- ory methods and compute the prepotential of the effective gauge theory exploiting the localization methods of the instanton calculus showing that this leads to the same information given by the topological string. We also comment on the relation between our approach and the so-called -background.