Entropic entanglement criteria for Fermion systems
Entanglement criteria for general (pure or mixed) states of systems consisting of two; identical fermions are introduced. These criteria are based on appropriate inequalities; involving the entropy of the global density matrix describing the total system, on the one; hand, and the entropy of the one...
Guardado en:
| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2012
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/123922 |
| Aporte de: |
| Sumario: | Entanglement criteria for general (pure or mixed) states of systems consisting of two; identical fermions are introduced. These criteria are based on appropriate inequalities; involving the entropy of the global density matrix describing the total system, on the one; hand, and the entropy of the one-particle reduced density matrix, on the other hand. A; majorization-related relation between these two density matrices is obtained, leading to a; family of entanglement criteria based on Renyi’s entropic measure. These criteria are; applied to various illustrative examples of parametrized families of mixed states. The; dependence of the entanglement detection efficiency on Renyi’s entropic parameter is; investigated. The extension of these criteria to systems of N identical; fermions is also considered. |
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