We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Hyperfunction Quantum Field Theory: Localized Fields Without Localized Test Functions.
- Authors
Nagamachi, S.; Brüning, E.
- Abstract
This note addresses the problem of localization in quantum field theory; more specifically we contribute to the ongoing discussion about the most appropriate concept of localization which one should use in relativistic quantum field theory: through localized test functions or through the fields directly without localized test functions. In standard quantum field theory, i.e.. in relativistic quantum field theory in terms of tempered distributions according to Carding and Wightman, this is done through localized test functions. In hyperfunction quantum field theory (HFQFT), i.e., relativistic quantum field theory in terms of Fourier hyperfunctions this is done through the fields themselves. In support of the second approach we show here that it has a much wider range of applicability. It can even be applied to relativistic quantum field theories which do not admit compactly supported test functions at all. In our construction of explicit models we rely on basic results from the theory of quasi-analytic functions.
- Subjects
QUANTUM field theory; FIELD theory (Physics); RELATIVITY (Physics); FOURIER analysis; HYPERFUNCTIONS; QUASIANALYTIC functions
- Publication
Letters in Mathematical Physics, 2003, Vol 63, Issue 2, p141
- ISSN
0377-9017
- Publication type
Article
- DOI
10.1023/A:1023084312072