On the Proof of Parametric Dispersion Relations
- 15 November 1961
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 124 (4) , 1281-1282
- https://doi.org/10.1103/physrev.124.1281
Abstract
Parametric dispersion relations for the connected time-ordered Green's functions, conjectured by Nishijima on the basis of perturbation theory, are shown to exist for the special case of decay processes. Extension of the proof to the more interesting situations of scattering and production depends upon the possibility of continuing one or more of the energy variables to negative values.Keywords
This publication has 3 references indexed in Scilit:
- Time-Ordered Green's Functions and Perturbation TheoryPhysical Review B, 1961
- On the Many-Particle Structure of Green's Functions in Quantum Field TheoryJournal of Mathematical Physics, 1960
- Asymptotic Conditions and Perturbation TheoryPhysical Review B, 1960