Exact form factors in integrable quantum field theories: the scaling Z(N)-Ising model |
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| Affiliation: | 1. College of aerospace science and engineering, National University of Defense Technology, Changsha, Hunan 410073, People’s Republic of China;2. College of Science, National University of Defense Technology, Changsha, Hunan 410073, People’s Republic of China;3. Computational Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, People’s Republic of China |
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| Abstract: | A general form factor formula for the scaling -Ising model is constructed. Exact expressions of all matrix elements are obtained for several local operators. In addition, the commutation rules for order, disorder parameters and para-Fermi fields are derived. Because of the unusual statistics of the fields, the quantum field theory seems not to be related to any classical Lagrangian or field equation. |
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