A hierarchy in the completely bounded trace norm : the more entangled, the more useful

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We show that every entangled state provides an advantage in bi- and multi-channel discrimination that singles out its degree of entanglement, quantified in terms of its Schmidt number and of the corresponding robustness measures. Namely, the more an entangled state is, the more it is useful in channel discrimination. An information-theoretic interpretation to the hierarchy is also provided. Interestingly, the hierarchy can structure the effective degrees of freedom in the interaction between a system and an environment in the dynamics of open quantum systems.
Publisher
대한수학회
Issue Date
2020-10-24
Language
English
Citation

대한수학회 가을 연구발표회

URI
http://hdl.handle.net/10203/276971
Appears in Collection
EE-Conference Papers(학술회의논문)
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