The analytic Bethe ansatz for a chain with centrally extended su(2|2) symmetry

  title={The analytic Bethe ansatz for a chain with centrally extended su(2|2) symmetry},
  author={Niklas Beisert},
  journal={Journal of Statistical Mechanics: Theory and Experiment},
  • N. Beisert
  • Published 9 October 2006
  • Physics, Mathematics
  • Journal of Statistical Mechanics: Theory and Experiment
We investigate the integrable structure of spin chain models with centrally extended su(2|2) and psu(2, 2|4) symmetry. These chains have their origin in the planar anti-de Sitter/conformal field theory correspondence, but they also contain the one-dimensional Hubbard model as a special case. We begin with an overview of the representation theory of centrally extended su(2|2). These results are applied in the construction and investigation of an interesting S-matrix with su(2|2) symmetry. In… 
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