2009

Duality between Wilson loops and gluon amplitudes

Henn, J. M.

Understand

An intriguing new duality between planar MHV gluon amplitudes and light-like Wilson loops in N=4 super Yang-Mills is investigated.

  • We extend previous checks of the duality by performing a two-loop calculation of the rectangular and pentagonal Wilson loop.
  • Furthermore, we derive an all-order broken conformal Ward identity for the Wilson loops and analyse its consequences.
  • Starting from six points, the Ward identity allows for an arbitrary function of conformal invariants to appear in the expression for the Wilson loop.

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