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arXiv · 0707.0620

A generalized no-broadcasting theorem

Howard Barnum·Jonathan Barrett·Matthew Leifer·Alexander Wilce
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Abstract

We prove a generalized version of the no-broadcasting theorem, applicable to essentially \emph{any} nonclassical finite-dimensional probabilistic model satisfying a no-signaling criterion, including ones with ``super-quantum'' 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.

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Howard Barnum, Jonathan Barrett, Matthew Leifer, Alexander Wilce. 2007-07-04. A generalized no-broadcasting theorem. https://doi.org/10.1103/physrevlett.99.240501

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