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arXiv 1005.4469hep-thmath.AGmath.RT
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4d规范理论的仿射SL(2)共形块

Affine SL(2) conformal blocks from 4d gauge theories

Luis F. Alday, Yuji Tachikawa

摘要:

本文研究了四维N=2规范理论在表面算符存在下的Nekrasov瞬子配分函数。这可以通过使用数学文献中的结果在瞬子展开中逐阶计算。在SU(2)超规范理论的情况下,我们发现结果与仿射SL(2)李代数的共形块的一个修正形式一致.这些共形块提供,在临界极限,相应的量子化希钦哈密顿的本征函数。

英文摘要:

We study Nekrasov's instanton partition function of four-dimensional N=2 gauge theories in the presence of surface operators. This can be computed order by order in the instanton expansion by using results available in the mathematical literature. Focusing in the case of SU(2) quiver gauge theories, we find that the results agree with a modified version of the conformal blocks of affine SL(2) Lie algebra. These conformal blocks provide, in the critical limit, the eigenfunctions of the corresponding quantized Hitchin Hamiltonians.

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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