کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9727560 | 1480204 | 2005 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Some statistical features of the entanglement changes associated with quantum logical gates
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
We investigate the changes in the entanglement of formation ÎE produced by quantum logical gates acting on composite quantum systems. We consider two-qubit, three-qubit, and two-qutrit systems. We prove that the ÎE-distributions generated by different quantum gates that can be obtained from each other by recourse to appropriate local unitary transformations are identical, even if these gates (in general) produce different changes of entanglement on individual states. We also study, numerically, some features of the probabilities for obtaining different values of ÎE. In the case of two-qubit we show that the ÎE-distributions are well fitted by simple q-MaxEnt distributions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 356, Issues 2â4, 15 October 2005, Pages 385-402
Journal: Physica A: Statistical Mechanics and its Applications - Volume 356, Issues 2â4, 15 October 2005, Pages 385-402
نویسندگان
J. Batle, M. Casas, A. Plastino, A.R. Plastino,