Highly improved lattice field strength tensor

Mar, 2002
22 pages
Published in:
  • Annals Phys. 304 (2003) 1-21
e-Print:
Report number:
  • ADP-01-50-T482

Citations per year

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Abstract:
We derive an O(a^4)-improved lattice version of the continuum field-strength tensor. Discretization errors are reduced via the combination of several clover terms of various sizes, complemented by tadpole improvement. The resulting improved field-strength tensor is used to construct O(a^4)-improved topological charge and action operators. We compare the values attained by these operators as we cool several configurations to self-duality with a previously defined highly-improved action and assess the relative scale of the remaining discretization errors.
Note:
  • 22 pages, 7 postscript figures Report-no: ADP-01-50/T482
  • gauge field theory: SU(N)
  • lattice field theory: action
  • field strength
  • charge: topological
  • numerical methods: Monte Carlo
  • numerical calculations: Monte Carlo