Gribov problem for gauge theories: A Pedagogical introduction

  title={Gribov problem for gauge theories: A Pedagogical introduction},
  author={Giampiero Esposito and Diego N. Pelliccia and Francesco Zaccaria},
  journal={International Journal of Geometric Methods in Modern Physics},
The functional-integral quantization of non-Abelian gauge theories is affected by the Gribov problem at non-perturbative level: the requirement of preserving the supplementary conditions under gauge transformations leads to a nonlinear differential equation, and the various solutions of such a nonlinear equation represent different gauge configurations known as Gribov copies. Their occurrence (lack of global cross-sections from the point of view of differential geometry) is called Gribov… Expand
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