A compact formula for rotations as spin matrix polynomials

  title={A compact formula for rotations as spin matrix polynomials},
  author={T. Curtright and D. Fairlie and C. K. Zachos},
  journal={Symmetry Integrability and Geometry-methods and Applications},
  • T. Curtright, D. Fairlie, C. K. Zachos
  • Published 2014
  • Mathematics, Physics
  • Symmetry Integrability and Geometry-methods and Applications
  • Group elements of SU(2) are expressed in closed form as finite polynomials of the Lie algebra generators, for all definite spin representations of the rotation group. The simple explicit result exhibits connections between group theory, combinatorics, and Fourier analysis, especially in the large spin limit. Salient intuitive features of the formula are illustrated and discussed. 
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