2007

Diagonal multi-matrix correlators and BPS operators in N=4 SYM

Brown, T. W., Heslop, P. J., Ramgoolam, S.

Understand

We present a complete basis of multi-trace multi-matrix operators that has a diagonal two point function for the free matrix field theory at finite N.

  • This generalises to multiple matrices the single matrix diagonalisation by Schur polynomials.
  • Crucially, it involves intertwining the gauge group U(N) and the global symmetry group U(M) with Clebsch-Gordan coefficients of symmetric groups S_n.
  • When applied to N=4 super Yang-Mills we consider the U(3) subgroup of the full symmetry group.

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