Journal
ANNALS OF PHYSICS
Volume 365, Issue -, Pages 38-53Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.aop.2015.10.022
Keywords
Quantum correlations; Quantum discord; Entanglement of formation; Plasmonic nanostructure
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Funding
- European Union (European Social Fund - ESF)
- Greek national funds through the Operational Program Education and Lifelong Learning of the National Strategic Reference Framework (NSRF) - Research Funding Program: Archimedes III
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We theoretically investigate the generation of quantum correlations by using two distant qubits in free space or mediated by a plasmonic nanostructure. We report both entanglement of formation as well as quantum discord and classical correlations. We have found that for proper initial state of the two-qubit system and distance between the two qubits we can produce quantum correlations taking significant value for a relatively large time interval so that it can be useful in quantum information and computation processes. (C) 2015 Elsevier Inc. All rights reserved.
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