UNITARITY CONDITIONS IN TERMS OF PROPAGATION KERNELS
Abstract
IF THE GROUP PROPERTY (macroscopic causality of the U-matrix (S-matrix computed between finite initial and final times) is postulated, the proof of its unitarity reduces to a most simple verification on the propagation kernels of the theory. The Appendix gives an explicit proof of that property for electro- and meso-dynamics by means of perturbative expansions, which may be easily generalized. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 30, 1961
- Accession Number
- AD0258254
Entities
People
- B. Preziosi
- E.r. Caianiello
- H. Umezawa
Organizations
- University of Naples Federico II