arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.10654hep-th
收藏

4d $\mathcal{N}=1$超共形指数的大- $N$极限

The large-$N$ limit of the 4d $\mathcal{N}=1$ superconformal index

Alejandro Cabo-Bizet, Davide Cassani, Dario Martelli, Sameer Murthy

摘要:

系统地分析了具有颤动描述的$\mathcal{N}=1$超共形理论的超共形指数的大- $N$极限。这些理论的指数是已知的酉矩阵积分,我们使用最近开发的椭圆扩展技术计算。这种方法使我们能够很容易地将积分计算为在规范群的秩为无穷大的极限中的有效作用量的鞍点上的和。对于一般的鞍点理论,我们发现了一类特殊的鞍点族,它的有效作用量具有由理论反常系数控制的普遍形式。这个家庭包括已知的超对称黑洞解方案的全息对偶AdS $_5$理论。然后,我们分析的指数细化打开风味化学势。我们表明,在一定范围内的化学势,有效的行动再次采取了普遍的立方形式,是由异常系数的理论。最后,我们提出了一类鞍点方程的解决方案,这是标记的群同态有限阿贝尔群的顺序$N$到环面。

英文摘要:

We systematically analyze the large-$N$ limit of the superconformal index of $\mathcal{N}=1$ superconformal theories having a quiver description. The index of these theories is known in terms of unitary matrix integrals, which we calculate using the recently-developed technique of elliptic extension. This technique allows us to easily evaluate the integral as a sum over saddle points of an effective action in the limit where the rank of the gauge group is infinite. For a generic quiver theory under consideration, we find a special family of saddles whose effective action takes a universal form controlled by the anomaly coefficients of the theory. This family includes the known supersymmetric black hole solution in the holographically dual AdS$_5$ theories. We then analyze the index refined by turning on flavor chemical potentials. We show that, for a certain range of chemical potentials, the effective action again takes a universal cubic form that is controlled by the anomaly coefficients of the theory. Finally, we present a large class of solutions to the saddle-point equations which are labelled by group homomorphisms of finite abelian groups of order $N$ into the torus.

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。

↑