Evaluation of entanglement measures in spin systems with the random phase approximation
We discuss a general formalism based on the mean field plus random phase approximation (RPA) for the evaluation of entanglement measures in the ground state of spin systems. The method provides a tractable scheme for determining the entanglement entropy as well as the negativity of finite subsystems...
Guardado en:
| Autores principales: | Canosa, Norma Beatriz, Matera, Juan Mauricio, Rossignoli, Raúl Dante |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2011
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/145203 |
| Aporte de: |
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