2013

Bethe Ansatz for Yangian Invariants: Towards Super Yang-Mills Scattering Amplitudes

Frassek, Rouven, Kanning, Nils, Ko, Yumi et al.

Understand

We propose that Baxter's Z-invariant six-vertex model at the rational gl(2) point on a planar but in general not rectangular lattice provides a way to study Yangian invariants.

  • These are identified with eigenfunctions of certain monodromies of an auxiliary inhomogeneous spin chain.
  • As a consequence they are special solutions to the eigenvalue problem of the associated transfer matrix.
  • Excitingly, this allows to construct them using Bethe ansatz techniques.

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