Title: Cloning quantum entanglement in arbitrary dimensions
Authors: Karpov, E ×
Navez, Patrick
Cerf, NJ #
Issue Date: Oct-2005
Publisher: American physical soc
Series Title: Physical Review A, Atomic, Molecular and Optical Physics vol:72 issue:4 pages:-
Abstract: We have found a quantum cloning machine that optimally duplicates the entanglement of a pair of d-dimensional quantum systems prepared in an arbitrary isotropic state. It maximizes the entanglement of formation contained in the two copies of any maximally entangled input state, while preserving the separability of unentangled input states. Moreover, it cannot increase the entanglement of formation of isotropic states. For large d, the entanglement of formation of each clone tends to one-half the entanglement of the input state, which corresponds to a classical behavior. Finally, we investigate a local entanglement cloner, which yields entangled clones with one-fourth the input entanglement in the large-d limit.
ISSN: 1050-2947
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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