Abstract:
Lecture delivered at XXXVI Summer School on Subnuclear Physics at Erice in September 1998. It contains a brief reflection on the development of QFT in late sixties and a discussion of the role of solitons in realistic field theoretic models.
  • talk: Erice
  • field theory: history
  • gauge field theory: Yang-Mills
  • soliton
  • quantum electrodynamics
  • renormalization
  • charge: topological
  • sine-Gordon equation
  • Skyrme model
  • knot theory