Nota de FísicaPublicado
Test of New Nonperturbative Concepts in d=1+1 Factorizing Models of QFT
Bert Schroer
1999
Dados da publicação
- Autores
- Bert Schroer
- Tipo
- Nota de Física
- Status
- Publicado
- Data de publicação
- 1999
- Descrição
- This paper deals with operators (PFG), which are localized in Minkowski space wedges (Rindler or Bisognano-Wichmann) regions, and yet are free of those polarization clouds which are typical of vectors obtained by applying interacting operators with smaller localization regions or local fields to the vacuum. They relate the (off-shell) KMS properties for the thermal Unruh wedge localization to the on-shell concept of crossing symmtry in a surprizingly deep way, and create new understanding in an area of QFT which hitherto remained somewhat obscure from the point of view of particle physics. The first test of these concepts, carried out on the Karowski-Weisz-Smirnov axiomatic approach to factorizable d=1+1 models, yields not only a deep understanding, but also opens new ideas in the bootstrap-formfactor approach. The findings suggest the existence of a new nonperturbative framework of QFT in which interactions are not defined and implemented by (interaction parts) of Lagrangians or closely related functional integrals, but rather by certain properties of the wedge algebras. The sharpening of localization starting from wedges is done by the process of "quantum localization" via the intersection of algebras instead of the classical localization in terms of the support of testing functions. This new paradigm in QFT also leads to change of emphasis away from short distance properties of individual fields deciding over the existence and renormalizability of models in favor of nontriviality of intersections of wedge algebras.
- Ano
- 1999
- Número
- CBPF-NF-018/99
- Vínculo com tese
- Não
- Vínculo com bolsa
- Não