INVESTIGADORES
GONZALEZ PISANI Pablo Andres
artículos
Título:
Worldline approach to noncommutative field theory
Autor/es:
BONEZZI, ROBERTO; O. CORRADINI; S. A. FRANCHINO VIÑAS; P.A.G. PISANI
Revista:
JOURNAL OF PHYSICS. A - MATHEMATICAL AND GENERAL
Editorial:
IOP Publishing
Referencias:
Año: 2012 vol. 45 p. 405401 - 405415
ISSN:
0305-4470
Resumen:
The study of the heat-trace expansion in non-commutative field theory hasshown the existence of Moyal non-local Seeley-DeWitt coefficients whichare related to the UV/IR mixing and manifest, in some cases, the nonrenormalizabilityof the theory. We show that these models can be studied in aworldline approach implemented in phase space and arrive at a master formulafor the n-point contribution to the heat-trace expansion. This formulation couldbe useful in understanding some open problems in this area, as the heat-traceexpansion for the non-commutative torus or the introduction of renormalizingterms in the action, as well as for generalizations to other non-local operators.
