Distilling entanglement with noisy operations

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Entanglement distillation is a fundamental task in quantum information processing. It not only extracts entanglement out of corrupted systems but also leads to protecting systems of interest against intervention with environment. In this work, we consider a realistic scenario of entanglement distillation where noisy quantum operations are applied. In particular, the two-way distillation protocol that tolerates the highest error rate is considered. We show that among all types of noise there are only four equivalence classes according to the distillability condition. Since the four classes are connected by local unitary transformations, our results can be used to improve entanglement distillability in practice when entanglement distillation is performed in a realistic setting.
Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
Issue Date
2017-04
Language
English
Article Type
Article
Keywords

QUANTUM REPEATERS; LOCAL OPERATIONS; PURIFICATION; SEPARABILITY; CHANNELS; STATES

Citation

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION, v.15, no.3

ISSN
0219-7499
DOI
10.1142/S0219749917500198
URI
http://hdl.handle.net/10203/244345
Appears in Collection
EE-Journal Papers(저널논문)
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