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Detection of new dynamical features of two coupled spins with an antiferromagnetic environment |
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PP: 51-55 |
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Author(s) |
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A. S. F. Obada,
D. A. M. Abo-Kahla,
M. Abdel-Aty,
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Abstract |
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| We find a class of spin environment at finite temperature in the thermodynamics limit models where individual quantum
trajectories may depend on parameters that are undetermined by the full open system evolution. Our criteria are functions of the given
quantum state and detect genuine multipartite entanglement, purity and information entropy that had not been identified so far. They are
experimentally accessible without quantum state tomography and are easily computable as no optimization or eigenvalue evaluation is
needed. |
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