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arXiv 0812.3108hep-th
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Ramond代数零向量微分方程

Differential equations from null vectors of the Ramond algebra

P Giokas, G M T Watts

摘要:

考虑N=1超维拉索罗代数的四个Ramond场的手征块,其中一个场是(1,2)表示.我们展示了如何在(1,2)表示的零矢量确定的手征块作为一系列的扩展。然后,我们转向伊辛模型找到一个代数方法来确定四个自旋场块的微分方程。扩展这些想法的超级Virasoro的情况下,我们发现一个一阶微分方程块的四个雷蒙字段。在许多情况下,我们都能找到精确的解。我们比较我们的块与其他方法已知的结果。

英文摘要:

We consider chiral blocks of four Ramond fields of the N=1 super Virasoro algebra where one of the fields is in the (1,2) representation. We show how the null vector in the (1,2) representation determines the chiral blocks as series expansions. We then turn to the Ising model to find an algebraic method to determine differential equations for the blocks of four spin fields. Extending these ideas to the super Virasoro case, we find a first order differential equation for blocks of four Ramond fields. We are able to find exact solutions in many cases. We compare our blocks with results known from other methods.

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