Communications in Mathematical Physics

, Volume 85, Issue 1, pp 49–71

The physical state space of quantum electrodynamics

  • Detlev Buchholz

DOI: 10.1007/BF02029133

Cite this article as:
Buchholz, D. Commun.Math. Phys. (1982) 85: 49. doi:10.1007/BF02029133


Starting from the fact that electrically charged particles are massive, we derive a criterion which characterizes the state space of quantum electrodynamics. This criterion clarifies the special role of the electric charge amongst the uncountably many superselection rules in quantum electrodynamics and provides a basis for a general analysis of the infrared problem. Within this framework we establish the existence of asymptotic electromagnetic fields in all charge-sectors, find a general characterization of infra-particles and introduce a notion of asymptotic completeness.

Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • Detlev Buchholz
    • 1
  1. 1.II. Institute of Theoretical PhysicsUniversity of HamburgHamburgGermany