Coulomb gauge Green functions and Gribov copies in SU(2) lattice gauge theory

Abstract

We reconsider the lattice measurement of Green functions in Coulomb gauge, both in 2+1 and 3+1 dimensions, using an improved gauge fixing scheme. The influence of Gribov copies is examined and we find clear indications that Green functions are more strongly affected than previously assumed, in particular for low momenta. Qualitatively, our improved lattice results in the infra-red compare more favourably with recent continuum calculations in the Hamiltonian approach.

arXiv comment7 pages, 4 eps figures, talk presented at the XXV International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regensburg, Germany

References in corpus (2)

• Perturbation Theory of Coulomb Gauge Yang-Mills Theory Within the First Order Formalism
• Hamiltonian approach to Coulomb gauge Yang-Mills Theory

Cited by in corpus (5)

• Hamiltonian Approach to 1+1 dimensional Yang-Mills theory in Coulomb gauge
• Equal-time two-point correlation functions in Coulomb gauge Yang-Mills theory
• Coulomb gauge Yang-Mills theory in the Hamiltonian approach
• Connecting phase transitions between the 3-d O(4) Heisenberg model and 4-d SU(2) lattice gauge theory
• Recent results from the Hamiltonian approach to Yang-Mills theory in Coulomb gauge