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arXiv 1607.00728hep-th
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增强的N=3 Kazama-Suzuki模型中的高自旋流

Higher Spin Currents in the Enhanced N=3 Kazama-Suzuki Model

Changhyun Ahn, Hyunsu Kim

摘要:

Creutzig、Hikida和Ronne发现了N=3的Kazama-Suzuki模型在“临界”水平上。我们构造了自旋(3/2,2,2,2,5/2,5/2,5/2,3)的最低高自旋流。为了得到这些较高自旋流之间的算子乘积展开(OPEs),我们描述了两个N=2的较高自旋流之间的三个N =2的OPEs,分别用(3/2,2,2,5/2)和(2,5/2,5/2,3)表示(在分量法中对应36个OPEs)。利用不同的Jacobi恒等式,这些N=2的OPEs的右侧出现的系数函数完全根据中心荷确定。然后,我们将它们描述为N=3超空间中的一个单个N=3 OPE。这个N=3的OPE的右手边包含SO(3)-单态N=3的高自旋多重态(2,5/2,5/2,5/2,3,3,7/2),SO(3)-单线态N=3自旋的高自旋多重态(5/2,3,3,3,7/2,7/2,7/2,4),以及SO(3)-三重态N=3个更高自旋多重态,其中每个多重态具有(3,7/2,7/2,7/2,4,4,9/2),此外还有N=3的超共形恒等算子族.最后,通过分解出N=3线性超共形代数的8个自旋流(1/2,1,1,1,3/2,3/2,3/2,2)生成的自旋-1/2流,得到了所谓SO(3)非线性Knizhnik Bershadsky代数的推广.

英文摘要:

The N=3 Kazama-Suzuki model at the `critical' level has been found by Creutzig, Hikida and Ronne. We construct the lowest higher spin currents of spins (3/2, 2,2,2,5/2, 5/2, 5/2, 3) in terms of various fermions. In order to obtain the operator product expansions (OPEs) between these higher spin currents, we describe three N=2 OPEs between the two N=2 higher spin currents denoted by (3/2, 2, 2, 5/2) and (2, 5/2, 5/2, 3) (corresponding 36 OPEs in the component approach). Using the various Jacobi identities, the coefficient functions appearing on the right hand side of these N=2 OPEs are determined in terms of central charge completely. Then we describe them as one single N=3 OPE in the N=3 superspace. The right hand side of this N=3 OPE contains the SO(3)-singlet N=3 higher spin multiplet of spins (2, 5/2, 5/2, 5/2, 3,3,3, 7/2), the SO(3)-singlet N=3 higher spin multiplet of spins (5/2, 3,3,3, 7/2, 7/2, 7/2, 4), and the SO(3)-triplet N=3 higher spin multiplets where each multiplet has the spins (3, 7/2, 7/2, 7/2, 4,4,4, 9/2), in addition to N=3 superconformal family of the identity operator. Finally, by factoring out the spin-1/2 current of N=3 linear superconformal algebra generated by eight currents of spins (1/2, 1,1,1, 3/2, 3/2, 3/2, 2), we obtain the extension of so-called SO(3) nonlinear Knizhnik Bershadsky algebra.

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