Quantum theory of fields
Author(s)
Streater, Raymond Frederick
Type
Thesis
Abstract
In the first chapter it is shown that the physical properties of relativity, causality and positive mass-spectrum can be expressed as regularity properties of certain functions occurring in any theory of fields. Some properties of regular functions of many variables are noted, and a simplified proof of a useful emma of Dyson is given for completeness. This lemma is used in chapter two to prove dispersion relations for processes of the type A+B > C+D. In chapter three unitarity is used below threshold to relate the unphysical region of these relations to physical S-matrix elements for simpler processes, by means of analytic continuation and integral equations. Chapter four an integral representaion for a double commutator is derived...
Version
Open Access
Date Awarded
1960
Date Acceptance
1960
Copyright Statement
Attribution-Non Commercial-No Derivatives 4.0 International Licence (CC BY-NC-ND)
Advisor
Salam, Abdus
Publisher Department
Department of Physics
Qualification Level
Doctoral
Qualification Name
Doctor of Philosophy (PhD)