Wess-Zumino Term for the AdS Superstring and Generalized Inonu-Wigner Contraction

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概要

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• We examine a Wess-Zumino term, written in a form of bilinear in superinvariant currents, for a superstring in anti-de Sitter (AdS) space, and derive a procedure for obtaining the correct flat limit. The standard Inonu-Wigner contraction does not give the correct flat limit but, rather, gives zero. This erroneous result originates from the fact that the fermionic metric of the super-Poincare group is degenerate. We propose a generalization of the Inonu-Wigner contraction from which a "nondegenerate" super-Poincare group is derived from the super-AdS group. For this reason, this contraction gives the correct flat limit of this Wess-Zumino term. We also discuss the M-algebra obtained using this generalized Inonu-Wigner contraction from osp(1|32).

• 理論物理学刊行会の論文
• 2003-05-25

著者

• Sakaguchi M

  Department Of Applied Mathematics And Theoretical Physics

• Sakaguchi Makoto

  Department Of Applied Mathematics And Theoretical Physics

• HATSUDA Machiko

  theory division, High Energy Accelerator Research Organization (KEK)

• Hatsuda Machiko

  Theory Division High Energy Accelerator Research Organization (kek)

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• Wess-Zumino Term for the AdS Superstring and Generalized Inonu-Wigner Contraction

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