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Dynamics of quantum correlation of four qubits system

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  • Gebremariam, Tesfay
  • Li, Wenlin
  • Li, Chong

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.

Suggested Citation

  • Gebremariam, Tesfay & Li, Wenlin & Li, Chong, 2016. "Dynamics of quantum correlation of four qubits system," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 457(C), pages 437-442.
    • Handle: RePEc:eee:phsmap:v:457:y:2016:i:c:p:437-442
    DOI: 10.1016/j.physa.2016.03.098
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    Cited by:

    1. Motamedifar, M., 2017. "Dynamical pairwise entanglement and two-point correlations in the three-ligand spin-star structure," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 483(C), pages 280-292.

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