Metric- and frame-like higher-spin gauge theories in three dimensions

Aug 12, 2014
30 pages
Published in:
  • J.Phys.A 48 (2015) 3, 035402
  • Published: Dec 29, 2014
e-Print:
Report number:
  • AEI-2014-036

Citations per year

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Abstract: (IOP)
We study the relation between the frame-like and metric-like formulation of higher-spin gauge theories in three space–time dimensions. We concentrate on the theory that is described by an SL(3)×SL(3)SL(3)\times SL(3) Chern–Simons theory in the frame-like formulation. The metric-like theory is obtained by eliminating the generalized spin connection by its equation of motion, and by expressing everything in terms of the metric and a spin-3 Fronsdal field. We give an exact map between fields and gauge parameters in both formulations. To work out the gauge transformations explicitly in terms of metric-like variables, we have to make a perturbative expansion in the spin-3 field. We describe an algorithm for how to do this systematically, and we work out the gauge transformations to cubic order in the spin-3 field. We use these results to determine the gauge algebra to this order, and explain why the commutator of two spin-3 transformations only closes on-shell.
Note:
  • 26 pages, no figures
  • gauge theory
  • higher-spin field theory
  • Chern–Simons theory
  • low-dimensional field theory
  • transformation: gauge
  • algebra: gauge
  • space-time: dimension: 3
  • gauge field theory
  • SL(3)
  • commutation relations