SU(N)-symmetric quasi-probability distribution functions
  We present a set of N-dimensional functions, based on generalized SU(N)-symmetric coherent states, that represent finite-dimensional Wigner functions, Q-functions, and P-functions. We then show the fundamental properties of these functions and discuss their usefulness for analyzing N-dimensional pure and mixed quantum states. 
Todd Tilma, Kae Nemoto
quant-ph math-ph math.MP