Hartree-Fock description of spin systems
A mean-field treatment of a general spin Hamiltonian containing linear and quadratic terms is presented. The equivalence between atomic coherent states and Hartree-Fock states is explicitly demonstrated. The relevance of symmetry restoration is exhibited. Entanglement properties at the different pha...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | México |
| Institución: | Universidad Nacional Autónoma de México |
| Repositorio: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:57028300008 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=57028300008 |
| Access Level: | acceso abierto |
| Palabra clave: | Física, Astronomía y Matemáticas Fock Hartree entanglement coherent state Spin Hamiltonian |
| Sumario: | A mean-field treatment of a general spin Hamiltonian containing linear and quadratic terms is presented. The equivalence between atomic coherent states and Hartree-Fock states is explicitly demonstrated. The relevance of symmetry restoration is exhibited. Entanglement properties at the different phases are briefly discussed. |
|---|