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arXiv 0911.0658hep-th
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从矩阵到字符串再返回

From Matrices to Strings and Back

Shlomo S. Razamat

摘要:

讨论了高斯矩阵模型弦对偶的显式构造。从矩阵模型出发,利用Strebel微分技巧,我们推导出了对偶弦结构的一些线索。接下来,根据这些提示,一个世界性理论被构建。假设这个弦论中的振动子局部化在黎曼曲面的模空间中的有限点集上。对于每个这样的点,我们将费曼图与对偶矩阵模型中的相关器相关联,从而将世界表表达式改写为费曼图的和。

英文摘要:

We discuss an explicit construction of a string dual for the Gaussian matrix model. Starting from the matrix model and employing Strebel differential techniques we deduce hints about the structure of the dual string. Next, following these hints a worldheet theory is constructed. The correlators in this string theory are assumed to localize on a finite set of points in the moduli space of Riemann surfaces. To each such point one associates a Feynman diagram contributing to the correlator in the dual matrix model, and thus recasts the worldsheet expression as a sum over Feynman diagrams.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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