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arXiv 1005.4730hep-thmath-phmath.MP
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酉矩阵模型的对偶性和副本

Duality and replicas for a unitary matrix model

E. Brezin, S. Hikami

摘要:

在广义Airy矩阵模型中,用幂函数$p$代替Kontsevich引入的Airy模型的立方项.参数$p$对应于曲线的模空间的交数理论中的Witten自旋指数。在$p$中向下延拓到$p= -2$,得到了一个研究得很好的酉矩阵模型,它在弱耦合区和强耦合区表现出两个不同的相,在弱耦合区和强耦合区之间具有三阶临界点。对偶和副本的应用$p$ -th艾里模型允许一个恢复的弱和强相位的酉模型,并建立一些新的结果,这些扩展。因此,酉模型也间接地是交集数的生成函数。

英文摘要:

In a generalized Airy matrix model, a power $p$ replaces the cubic term of the Airy model introduced by Kontsevich. The parameter $p$ corresponds to Witten's spin index in the theory of intersection numbers of moduli space of curves. A continuation in $p$ down to $p= -2$ yields a well studied unitary matrix model, which exhibits two different phases in the weak and strong coupling regions, with a third order critical point in-between. The application of duality and replica to the $p$-th Airy model allows one to recover both the weak and strong phases of the unitary model, and to establish some new results for these expansions. Therefore the unitary model is also indirectly a generating function for intersection numbers.

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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