Bethe Ansatz and exact form factors of the O(N) Gross Neveu-model
We apply previous results on the O(N) Bethe Ansatz [1{3] to construct a general form factor formula for the O(N) Gross-Neveu model. We examine this formula for several operators, such as the energy momentum, the spin- eld and the current. We also compare these results with the 1=N expansion of this...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | Brasil |
| Institución: | Universidade Federal do Rio Grande do Sul (UFRGS) |
| Repositorio: | Repositório Institucional da UFRGS |
| Idioma: | inglés |
| OAI Identifier: | oai:www.lume.ufrgs.br:10183/141226 |
| Acceso en línea: | http://hdl.handle.net/10183/141226 |
| Access Level: | acceso abierto |
| Palabra clave: | Estados ligados Teoria quantica de campos Grupos O Field Theories in Lower Dimensions Bethe Ansatz Integrable Field Theories |
| Sumario: | We apply previous results on the O(N) Bethe Ansatz [1{3] to construct a general form factor formula for the O(N) Gross-Neveu model. We examine this formula for several operators, such as the energy momentum, the spin- eld and the current. We also compare these results with the 1=N expansion of this model and obtain full agreement. We discuss bound state form factors, in particular for the three particle form factor of the eld. In addition for the two particle case we prove a recursion relation for the K-functions of the higher level Bethe Ansatz. |
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