Free Field Realization of Current Superalgebra Gl(m|n) K

نویسندگان

  • Wen-Li Yang
  • Yao-Zhong Zhang
  • Xin Liu
چکیده

We construct the free field representation of the affine currents, energy-momentum tensor and screening currents of the first kind of the current superalgebra gl(m|n)k uniformly for m = n and m 6= n. The energy-momentum tensor is given by a linear combination of two Sugawara tensors associated with the two independent quadratic Casimir elements of gl(m|n). PACS: 11.25.Hf; 02.20.Tw

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تاریخ انتشار 2006