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- aggregation classification "A1".
- aggregation creator B30586.
- aggregation creator B30587.
- aggregation creator person.
- aggregation date "2001".
- aggregation hasFormat 137522.bibtex.
- aggregation hasFormat 137522.csv.
- aggregation hasFormat 137522.dc.
- aggregation hasFormat 137522.didl.
- aggregation hasFormat 137522.doc.
- aggregation hasFormat 137522.json.
- aggregation hasFormat 137522.mets.
- aggregation hasFormat 137522.mods.
- aggregation hasFormat 137522.rdf.
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- aggregation hasFormat 137522.yaml.
- aggregation isPartOf urn:issn:1050-2947.
- aggregation language "eng".
- aggregation subject "Science General".
- aggregation title "Local filtering operations on two qubits".
- aggregation abstract "We consider one single copy of a mixed state of two qubits and investigate how its entanglement changes under local quantum operations and classical communications (LQCC) of the type rho'similar to (A x B)rho (A x B)(dagger). We consider a real matrix parametrization of the set of density matrices and show that these LQCC operations correspond to left and right multiplication by a Lorentz matrix, followed by normalization. A constructive way of bringing this matrix into a normal form is derived. This allows us to calculate explicitly the optimal local filtering operations for concentrating entanglement. Furthermore, we give a complete characterization of the mixed states that can be purified arbitrarily close to a Bell state. Finally, we obtain a new way of calculating the entanglement of formation.".
- aggregation authorList BK77601.
- aggregation issue "1".
- aggregation volume "64".
- aggregation isDescribedBy 137522.
- aggregation similarTo LU-137522.