کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8897776 1631042 2018 22 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Factorizations of quantum channels
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات اعداد جبر و تئوری
پیش نمایش صفحه اول مقاله
Factorizations of quantum channels
چکیده انگلیسی
We find a connection between the existence of a factorization of a quantum channel and the existence of low-rank solutions to certain linear matrix equations. Using this, we show that if a quantum channel is factorized by a direct integral of factors, it must lie in the convex hull of quantum channels which are factorized respectively by the factors in the direct integral. We use this to characterize some non-trivial extreme points in the set of factorizable quantum channels and give an example.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Linear Algebra and its Applications - Volume 553, 15 September 2018, Pages 145-166
نویسندگان
,