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Entanglement Theory Quantum Correlations
Distillation of free entanglement from bound entangled states using weak measurements
arXiv
Authors: S. Baghbanzadeh, A. T. Rezakhani
Year
2013
Paper ID
32760
Status
Preprint
Abstract Read
~2 min
Abstract Words
94
Citations
N/A
Abstract
We propose a scheme for distillation of free bipartite entanglement from bipartite bound-entangled states. The crucial element of our scheme is an ancillary system that is coupled to the initial bound-entangled state via appropriate weak measurements. We show that in this protocol free entanglement can be always generated with nonzero probability by using a single copy of the bound-entangled state. We also derive a lower bound on the entanglement cost of the protocol, and conclude that, on average, applying weaker measurements results in relatively higher values of free entanglement as well as lower costs.
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- This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
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- We propose a scheme for distillation of free bipartite entanglement from bipartite bound-entangled states.
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