Quantum correlation for a central two-qubit system coupled to Ising chain | Zendy

Yang Yang | Zendy; An Min Wang | Zendy

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Quantum correlation for a central two-qubit system coupled to Ising chain

Author(s) -

Yang Yang,

An Min Wang

Publication year - 2013

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.62.130305

Subject(s) - quantum discord , ising model , physics , quantum correlation , quantum , measure (data warehouse) , qubit , quantum mechanics , statistical physics , quantum dynamics , computer science , database

Studying quantum correlation dynamics of a central two-qubit system coupled to Ising chain model, we obtain that the evolution of quantum discord and geometric measure of quantum discord for the central atoms. We find that quantum correlation exists a sudden transition in the weak coupled interaction near the quantum critical point of Ising chain. Moreover, the evolution of geometric measure of quantum discord in invariant to some extent.

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