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Abstract:
Recently we have proposed a set of variables for describing the physical parameters of SU(N) Yang--Mills field. Here we propose an off-shell generalization of our Ansatz. For this we envoke the Darboux theorem to decompose arbitrary one-form with respect to some basis of one-forms. After a partial gauge fixing we identify these forms with the preimages of holomorphic and antiholomorphic forms on the coset space SU(N)/U(1)N1 SU(N)/U(1)^{N-1}, identified as a particular coadjoint orbit. This yields an off-shell gauge fixed decomposition of the Yang-Mills connection that contains our original variables in a natural fashion.
Note:
  • 5 pages, latex, no figures
  • gauge field theory: SU(N)
  • differential forms
  • coset space: SU(N)/U(1)**(N-1)
  • Darboux theorem