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arXiv 0811.2740hep-th
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三维空间中的超共形特征标与配分函数

On Superconformal Characters and Partition Functions in Three Dimensions

F. A. Dolan

摘要:

Osp(2N)的可能的短和半短正能量幺正表示|4)讨论了三维超共形群。得到了与SO(3,2)共形群的特征公式一致的相应特征公式,以简单的方式揭示了酉界上的长多重态分解。限值,对应于各种Osp(2N)的降低|4)子代数,采取的字符,隔离贡献从较少的国家,在给定的幺正性阈值,导致相当简单的公式。利用这些极限,将其应用于配分函数,得到了在大n极限下,超共形U(n)\times U(n)\N =6的自由场极限下BPS算子数的母函数的封闭公式.部分计数的半短运营商进行和运营商之间的一致性计数的自由场和超重力限制与长多重态分解规则明确证明。对大n,提出并计算了计算某些受保护的纯量准素半短算子及其超共形后代的配分函数。某些手性环配分函数从组合的角度进行了讨论。

英文摘要:

Possible short and semi-short positive energy, unitary representations of the Osp(2N|4) superconformal group in three dimensions are discussed. Corresponding character formulae are obtained, consistent with character formulae for the SO(3,2) conformal group, revealing long multiplet decomposition at unitarity bounds in a simple way. Limits, corresponding to reduction to various Osp(2N|4) subalgebras, are taken in the characters that isolate contributions from fewer states, at a given unitarity threshold, leading to considerably simpler formulae. Via these limits, applied to partition functions, closed formulae for the generating functions for numbers of BPS operators in the free field limit of superconformal U(n)\times U(n) \N=6 Chern Simons theory and its supergravity dual are obtained in the large n limit. Partial counting of semi-short operators is performed and consistency between operator counting for the free field and supergravity limits with long multiplet decomposition rules is explicitly demonstrated. Partition functions counting certain protected scalar primary semi-short operators, and their superconformal descendants, are proposed and computed for large n. Certain chiral ring partition functions are discussed from a combinatorial perspective.

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