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arXiv 1310.2124hep-th
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椭圆亏格与实Jacobi型

Elliptic genera and real Jacobi forms

Sujay K. Ashok, Jan Troost

摘要:

利用路径积分构造了具有矩阵指数的实Jacobi形式。路径积分表达式表示二维N=(2,2)超对称理论的椭圆族。它们出现在由两个整数N和k标记的族中,这两个整数通过公式c= 3 N(1+ 2N/k)确定红外固定点的中心荷。我们将实Jacobi形式分解为一个模拟模形式和一个由共形场论的连续谱产生的项。我们认为Jacobi形式代表了定义在2N维U(N)等距背景上的理论的椭圆亏格,该背景包含一个复射影空间截面,一个圆纤维和一个线性椭圆方向.我们还提出了这些模型的椭圆属orbifolds的公式。

英文摘要:

We construct real Jacobi forms with matrix index using path integrals. The path integral expressions represent elliptic genera of two-dimensional N=(2,2) supersymmetric theories. They arise in a family labeled by two integers N and k which determine the central charge of the infrared fixed point through the formula c=3N(1+ 2N/k). We decompose the real Jacobi form into a mock modular form and a term arising from the continuous spectrum of the conformal field theory. We argue that the Jacobi form represents the elliptic genus of a theory defined on a 2N dimensional background with U(N) isometry, containing a complex projective space section, a circle fiber and a linear dilaton direction. We also present formulas for the elliptic genera of orbifolds of these models.

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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