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The impact of resource on remote quantum correlation Preparation
(pp1223-1232)
Chengjun
Wu, Bin Luo, and Hong Guo
doi:
https://doi.org/10.26421/QIC15.13-14-8
Abstracts:
When Alice and Bob share two pairs of quantum correlated
states, Alice can remotely prepare quantum entanglement and quantum
discord in Bobs side by measuring the parts in her side and telling Bob
the measurement results by classical communication. For remote
entanglement preparation, entanglement is necessary . We find that for
some shared resources having the same amount of entanglement, when Bell
measurement is used, the entanglement remotely prepared can be
different, and more discord in the resources actually decreases the
entanglement prepared. We also find that for some resources with more
entanglement, the entanglement remotely prepared may be less. Therefore,
we conclude that entanglement is a necessary resource but may not be the
only resource responsible for the entanglement remotely prepared, and
discord does not likely to assist this process. Also, for the
preparation of discord, we find that some states with no entanglement
could outperform entangled states.
Key words:
quantum entanglement; quantum discord; remote preparation |
