Title: Single observable concurrence measurement without simultaneous copies
Authors: Salles, Alejo *
de Melo, Fernando * ×
Retamal, Juan Carlo *
de Matos Filho, Ruynet *
Zagury, Nicim * #
Issue Date: Dec-2006
Publisher: Published by the American Physical Society through the American Institute of Physics
Series Title: Physical Review A, Atomic, Molecular and Optical Physics vol:74 issue:6 pages:-
Abstract: We present a protocol that allows us to obtain the concurrence of any two-qubit pure state by performing a minimal and optimal tomography of one of the subsystems through measuring a single observable of an ancillary four-dimensional qudit. An implementation for a system of trapped ions is also proposed, which can be achieved with present-day experimental techniques.
ISSN: 1050-2947
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
* (joint) first author
× corresponding author
# (joint) last author

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