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Publications: Abstract

A Property of the Intrinsic Mutual Information

Matthias Christandl and Renato Renner and Stefan Wolf

The so-called intrinsic mutual information is an important measure in the context of information-theoretic secret-key agreement. We prove a property of this information measure which, in particular, strongly simplifies its computation. More generally, our result is useful for analyzing the correlation of two random variables conditioned on a third one.