摘要: (Dated: June 23, 2004)A framework for constructing new kinds of gauge theories is suggested. Essentially it consists inreplacing Lie algebras by or Courant algebroids. Besides presenting novel topological theoriesdefined in arbitrary spacetime dimensions, we show that equipping algebroids E with a fibermetric having sufficiently many E-Killing vectors leads to an astonishingly mild deformation ofordinary Yang-Mills theories: Additional fields turn out carry no propagating modes. Insteadthey serve as moduli parameters gluing together part different theories. This toa symmetry enhancement at critical points these fields, also typical String effective fieldtheories.
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