Gaussian multipartite bound information

Physics – Quantum Physics

Scientific paper

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5 pages, 1 figure. Submitted on 2nd September, 2010. Text slightly changed in comparison with the submitted version

Scientific paper

We show the existence of Gaussian multipartite bound information which is a classical analog of Gaussian multipartite bound entanglement. We construct a tripartite Gaussian distribution from which no secret key can be distilled between any two parties yet it cannot be created by local operations and public communication. This demonstrates a close link between entanglement and secrecy in the domain of random Gaussian continuous variables and underlines the ability of quantum mechanics to develop concepts of classical information theory.

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