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arXiv 0901.1173hep-th
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三重性与Bagger-Lambert理论

Triality and Bagger-Lambert Theory

Hitoshi Nishino, Subhash Rajpoot

摘要:

基于SO(8)的试探性,我们给出了Bagger-Lambert理论的两种可供选择的场内容。第一个内容是(φ_{A a},χ_{ \dot A a} ; A_ \m{}^{a b}),其中玻色子场φ位于SO(8)的8_S中,而不是原始Bagger-Lambert公式中的8_V中。第二个场内容是(φ_{ \dot A a},χ^I{}_a ; A_ \m{}^{a b}),其中玻色子场φ和费米子场χ分别在SO(8)的8_C和8_V中。在这两个领域的内容,玻色势是正定的,如所期望的。此外,这些玻色势可以通过SO(8)的三重性统一起来。为此,我们看到一个特殊的常数矩阵作为两个SO(8)生成元的乘积起着重要的作用,将SO(8)的8_V,8_S和8_C与triality联系起来。作为一个重要的应用,我们给出了N=6超共形Chern-Simons理论的超对称变换规则,其超对称参数为SO(6)的δ,由我们的第一个场内容的截断得到.

英文摘要:

We present two alternative field contents for Bagger-Lambert theory, based on the triality of SO(8). The first content is (φ_{A a}, χ_{\dot A a} ; A_\m{}^{a b}), where the bosonic field φis in the 8_S of SO(8) instead of the 8_V as in the original Bagger-Lambert formulation. The second field content is (φ_{\dot A a}, χ^I{}_a ; A_\m{}^{a b}), where the bosonic field φand the fermionic field χare respectively in the 8_C and 8_V of SO(8). In both of these field contents, the bosonic potentials are positive definite, as desired. Moreover, these bosonic potentials can be unified by the triality of SO(8). To this end, we see a special constant matrix as a product of two SO(8) generators playing an important role, relating the 8_V, 8_S and 8_C of SO(8) for the triality. As an important application, we give the supersymmetry transformation rule for N=6 superconformal Chern-Simons theory with the supersymmetry parameter in the 6 of SO(6), obtained by the truncation of our first field content.

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