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arXiv 0810.1023hep-th
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超刘维尔引力中的四点函数

Four-point function in Super Liouville Gravity

A. Belavin, V. Belavin

摘要:

考虑二维超刘维尔引力与极小超共形理论的耦合。我们对理论中的物理状态进行了分析,给出了球面上n点关联数在模空间上积分的一般形式。三点相关数被明确地提出。对于四点积分算子,我们证明了如果其中一个场退化,则模空间上的积分退化为边界项。事实证明,特殊的对数字段是相关的评估这些边界项。我们讨论了这些域的构造,并研究了它们的算子乘积展开。该分析允许评估四点相关数。推导类似于玻色子的情况下,是基于最近推导出的更高的运动方程的超级刘维场论。

英文摘要:

We consider the 2D super Liouville gravity coupled to the minimal superconformal theory. We analyze the physical states in the theory and give the general form of the n-point correlation numbers on the sphere in terms of integrals over the moduli space. The three-point correlation numbers are presented explicitly. For the four-point correlators, we show that the integral over the moduli space reduces to the boundary terms if one of the fields is degenerate. It turns out that special logarithmic fields are relevant for evaluating these boundary terms. We discuss the construction of these fields and study their operator product expansions. This analysis allows evaluating the four-point correlation numbers. The derivation is analogous to the one in the bosonic case and is based on the recently derived higher equations of motion of the super Liouville field theory.

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