Physics – Quantum Physics
Scientific paper
2007-11-21
Physics
Quantum Physics
13 pages, 1 figure, RevTex, minor errors are corrected, section "Conclusions" is added
Scientific paper
10.1103/PhysRevA.78.032301
Fermions play an essential role in many areas of quantum physics and it is desirable to understand the nature of entanglement within systems that consists of fermions. Whereas the issue of separability for bipartite fermions has extensively been studied in the present literature, this paper is concerned with maximally entangled fermions. A complete characterization of maximally entangled quasifree (gaussian) fermion states is given in terms of the covariance matrix. This result can be seen as a step towards distillation protocols for maximally entangled fermions.
Cozzini Marco
Keyl Michael
Schlingemann Dirk-Michael
Venuti Lorenzo Campos
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