Generalized no-broadcasting theorem.
نویسندگان
چکیده
We prove a generalized version of the no-broadcasting theorem, applicable to essentially any nonclassical finite-dimensional probabilistic model satisfying a no-signaling criterion, including ones with "superquantum" correlations. A strengthened version of the quantum no-broadcasting theorem follows, and its proof is significantly simpler than existing proofs of the no-broadcasting theorem.
منابع مشابه
Superbroadcasting of mixed states.
We derive the optimal universal broadcasting for mixed states of qubits. We show that the no-broadcasting theorem cannot be generalized to more than a single input copy. Moreover, for four or more input copies it is even possible to purify the input states while broadcasting. We name such purifying broadcasting superbroadcasting.
متن کاملAN LP-LQ-VERSION OF MORGAN’S THEOREM FOR THE GENERALIZED BESSEL TRANSFORM
n this article, we prove An Lp-Lq-version of Morgan’s theorem for the generalized Bessel transform.
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عنوان ژورنال:
- Physical review letters
دوره 99 24 شماره
صفحات -
تاریخ انتشار 2007