کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9789618 1512912 2005 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Template matching of mixed quantum states
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Template matching of mixed quantum states
چکیده انگلیسی
We consider the problem of optimal classification of an unknown input mixed quantum state f^ with respect to a set of predefined patterns Ci, each represented by a known mixed quantum template g^i. The performance of the matching strategy is addressed within a Bayesian formulation where the cost function, as suggested by the theory of monotone distances between quantum states, is chosen to be the fidelity or the relative entropy between the input and the templates. We investigate various examples of quantum template matching for the case of a finite number of copies of a two-level input state f^ and for a generic, group covariant, set of two-level template states.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 29, Issues 3–4, November 2005, Pages 716-719
نویسندگان
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