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Quantum Characterization of a Werner-like Mixture
Anna Felicetti, Stefano Mancini, Paolo Tombesi
abstract: We introduce a Werner-like mixture [R. F. Werner, Phys. Rev. A {\bf 40}, 4277
(1989)] by considering two correlated but different degrees of freedom, one
with discrete variables and the other with continuous variables. We evaluate
the mixedness of this state, and its degree of entanglement establishing its
usefulness for quantum information processing like quantum teleportation. Then,
we provide its tomographic characterization. Finally, we show how such a
mixture can be generated and measured in a trapped system like one electron in
a Penning trap.
- oai_identifier:
- oai:arXiv.org:quant-ph/0201071
- categories:
- quant-ph
- comments:
- 8 pages ReVTeX, 8 eps figures
- doi:
- 10.1103/PhysRevA.65.062107
- arxiv_id:
- quant-ph/0201071
- journal_ref:
- Phys. Rev. A 65, 062107 (2002).
- created:
- 2002-01-17
Full article ▸
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