
arXiv: hep-th/0003099
handle: 11368/1871084 , 20.500.11767/13373
We introduce nonlinear σ-models in the framework of noncommutative geometry with special emphasis on models defined on the noncommutative torus. We choose as target spaces the two point space and the circle and illustrate some characteristic features of the corresponding σ-models. In particular we construct a σ-model instanton with topological charge equal to 1. We also define and investigate some properties of a noncommutative analogue of the Wess–Zumino–Witten model.
High Energy Physics - Theory, High Energy Physics - Theory (hep-th), Noncommutative geometry methods in quantum field theory, Noncommutative geometry (à la Connes), Noncommutative geometry in quantum theory, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Mathematical Physics (math-ph), General Relativity and Quantum Cosmology, Mathematical Physics
High Energy Physics - Theory, High Energy Physics - Theory (hep-th), Noncommutative geometry methods in quantum field theory, Noncommutative geometry (à la Connes), Noncommutative geometry in quantum theory, FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), Mathematical Physics (math-ph), General Relativity and Quantum Cosmology, Mathematical Physics
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