The Physical State Space of Quantum Electrodynamics

Autor: Detlev Buchholz
Jazyk: angličtina
Rok vydání: 1982
Předmět:
Zdroj: Comm. Math. Phys. 85, no. 1 (1982), 49-71
DOI: 10.3204/pubdb-2017-13190
Popis: 22 pp. (1982).
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.
Databáze: OpenAIRE