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arXiv 1510.02480hep-th
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带Polyakov环的${\cal N}=4$ Schur指数

The ${\cal N}=4$ Schur index with Polyakov loops

Nadav Drukker

摘要:

最近的Schur指数的${\cal N}=4$ SYM进行了评估,在封闭的形式,包括指数校正的大$N$扩展和固定有限的$N$的所有订单。这是通过识别矩阵模型来实现的,该模型用圆上自由费米子系统的配分函数来计算指数。索引可以通过包含循环算子来丰富,并且威尔逊圈的情况特别容易,因为它相当于将额外的字符插入到矩阵模型中。费米气体的方法在这里适用于这个问题,形式主义的探索和明确的结果,在大$N$被发现的基本以及其他一些对称和反对称表示。

英文摘要:

Recently the Schur index of ${\cal N}=4$ SYM was evaluated in closed form to all orders including exponential corrections in the large $N$ expansion and for fixed finite $N$. This was achieved by identifying the matrix model which calculates the index with the partition function of a system of free fermions on a circle. The index can be enriched by the inclusion of loop operators and the case of Wilson loops is particularly easy, as it amounts to inserting extra characters into the matrix model. The Fermi-gas approach is applied here to this problem, the formalism is explored and explicit results at large $N$ are found for the fundamental as well as a few other symmetric and antisymmetric representations.

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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