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Generalized No−Broadcasting Theorem

Howard Barnum‚ Jonathan Barrett‚ Matthew Leifer and Alexander Wilce

Abstract

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. © 2007 The American Physical Society.

ISSN
0031−9007
Journal
Physical Review Letters
Month
dec
Number
24
Pages
240501
Volume
99
Year
2007