کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
850150 909281 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement-induced nonlocality and geometric quantum discord in two SC-charge qubits
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Measurement-induced nonlocality and geometric quantum discord in two SC-charge qubits
چکیده انگلیسی

By using geometric quantum discord and measurement-induced nonlocality, quantum correlations are investigated for two superconducting (SC) charge qubits that share a large Josephson junction where the field is assumed to be prepared initially in a coherent state. It is found that the difference between measure measurement-induced nonlocality and geometric quantum discord, of the final state of the two SC-charge qubits system which is especial case of X-states, is equal to a constant value. It is found that the quantum correlations and entanglement of the qubits are very sensitive to the mean number of the coherent photons. The entanglement exists in small intervals of death quantum discord and measurement-induced nonlocality. This is further evidence in support of the fact that quantum correlation and entanglement are not synonymous.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 124, Issue 22, November 2013, Pages 5369–5372
نویسندگان
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