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Indexed by:期刊论文

Date of Publication:2016-09-01

Journal:PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS

Included Journals:SCIE、EI、Scopus

Volume:457

Page Number:437-442

ISSN No.:0378-4371

Key Words:Quantum correlation; Quantum consonance; Quantum entanglement

Abstract:In the present report, we investigate the dynamics of quantum correlation of four qubits system, and we characterize this kind of dynamics by quantum consonance and concurrence as measurement of quantum correlation and entanglement, respectively. By this measurement, one can easily study if non-entangled quantum correlation can transfer to entanglement. In our model, we find that this case cannot be realized. In addition, we constructed a four qubits swapping gate, which is made up of two bipartite swapping gates. Under this composite gate the quantum correlation is exchanged between two entangled pairs. The influence of the physical parameters like the purity and the amount of entanglement of the initial states is also examined. (C) 2016 Elsevier B.V. All rights reserved.