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Unitarity violation at the Wilson-Fisher fixed point in 4-epsilon dimensions
We consider the continuation of free and interacting scalar field theory to non-integer spacetime dimension d. We find that the correlation functions in these theories are necessarily incompatible with unitarity (or with reflection positivity in Euclidean signature). In particular, the theories cont...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
2015
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.93.125025 http://cds.cern.ch/record/2110517 |