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Title: Non-Markovian effects on quantum-communication protocols
Authors: Yeo, Y. 
An, J.-H. 
Oh, C.H. 
Issue Date: 30-Sep-2010
Citation: Yeo, Y., An, J.-H., Oh, C.H. (2010-09-30). Non-Markovian effects on quantum-communication protocols. Physical Review A - Atomic, Molecular, and Optical Physics 82 (3) : -. ScholarBank@NUS Repository.
Abstract: We show how, under the influence of non-Markovian environments, two different maximally entangled Bell states give rise to states that have equal classical correlations and the same capacities to violate the Bell-Clauser-Horne-Shimony-Holt inequality, but intriguingly differing usefulness for teleportation and dense coding. We elucidate how different entanglement measures like negativity and concurrence, and two different measures of quantum discord, could account for these behaviors. In particular, we explicitly show how the Ollivier-Zurek measure of discord directly accounts for one state being a better resource for dense coding compared to another. Our study leads to several important issues about these measures of discord. © 2010 The American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
ISSN: 10502947
DOI: 10.1103/PhysRevA.82.032340
Appears in Collections:Staff Publications

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