Duality covariant quantum field theory on noncommutative Minkowski space

Details Duality covariant quantum field theory on noncommutative Minkowski space Duality covariant quantum field theory on noncommutative Minkowski space

2008-10-07

arxiv.org/abs/0810.1195v3

JHEP 0902:031,2009

Physics

High Energy Physics

High Energy Physics - Theory

32 pages; v2: Typos corrected; v3: Further typos corrected - Final version to appear in JHEP

Scientific paper

10.1088/1126-6708/2009/02/031

We prove that a scalar quantum field theory defined on noncommutative Minkowski spacetime with noncommuting momentum coordinates is covariant with respect to the UV/IR duality which exchanges coordinates and momenta. The proof is based on suitable resonance expansions of charged noncommutative scalar fields in a background electric field, which yields an effective description of the field theory in terms of a coupled complex two-matrix model. The two independent matrix degrees of freedom ensure unitarity and manifest CT-invariance of the field theory. The formalism describes an analytic continuation of the renormalizable Grosse-Wulkenhaar models to Minkowski signature.

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