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A expandable series of non-linear σ models with instantons |
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| Authors: | A. D&#x Adda,M. Lüscher,P. Di Vecchia |
| Affiliation: | The Niels Bohr Institute, University of Copenhagen, DK-2100 Copenhagen Ø, Denmark;NORDITA, DK-2100 Copenhagen Ø, Denmark |
| Abstract: | We formulate and discuss in detail the recently discovered non-linear σ models in two dimensions. We find that the fundamental particles in these theories are confined by a topological Coulomb force. |
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