Communications in Mathematical Physics

, Volume 84, Issue 1, pp 1–54

Locality and the structure of particle states


  • Detlev Buchholz
    • II. Institut für Theoretische Physik der Universität Hamburg
  • Klaus Fredenhagen
    • Fakultät für Physik der Universität Freiburg

DOI: 10.1007/BF01208370

Cite this article as:
Buchholz, D. & Fredenhagen, K. Commun.Math. Phys. (1982) 84: 1. doi:10.1007/BF01208370


Starting from the principle of locality of observables we derive localization properties of massive particle states which hold in all models of relativistic quantum theory, including gauge theories. It turns out that particles may always be regarded as well localized distributions of matter, although their mathematical description might require the introduction of non-local (unobservable) fields, which are assigned to infinite string-like regions. In spite of the non-locality of these fields one can show that such particles obey Bose- or Fermi (para) statistics, that to each particle there exists an antiparticle and that collision states of particles exist. A selfcontained exposition of the underlying physical ideas is given in the Introduction, and some perspectives for the structure of field-theoretic models arising from our analysis are discussed in the Conclusions.

Copyright information

© Springer-Verlag 1982