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Quantum Information Theory is an area of physics which studies both fundamental and applied issues in quantum mechanics from an information-theoretical viewpoint. The underlying techniques are,… Expand
The goals of this paper are two-fold. First we introduce and motivate a generalization of the fundamental concept of the indistinguishability of two systems, called indifferentiability. This… Expand
Shannon entropy is a useful and important measure in information processing, for instance, data compression or randomness extraction, under the assumption—which can typically safely be made in… Expand
Quantum theory provides an extremely accurate description of fundamental processes in physics. It thus seems likely that the theory is applicable beyond the, mostly microscopic, domain in which it… Expand
Privacy amplification is the art of shrinking a partially secret string Z to a highly secret key S. We show that, even if an adversary holds quantum information about the initial string Z, the key S… Expand
In this paper, we show that the conditional min-entropy <i>H</i> <sub>min</sub>(<i>A</i> |<i>B</i>) of a bipartite state <i>rhoAB</i> is directly related to the maximum achievable overlap with a… Expand
We present a technique for proving the security of quantum-key-distribution (QKD) protocols. It is based on direct information-theoretic arguments and thus also applies if no equivalent entanglement… Expand
According to quantum theory, measurements generate random outcomes, in stark contrast with classical mechanics. This raises the question of whether there could exist an extension of the theory that… Expand
International Symposium onInformation Theory…
We introduce a new entropy measure, called smooth Renyi entropy. The measure characterizes fundamental properties of a random variable Z, such as the amount of uniform randomness that can be… Expand
The Heisenberg uncertainty principle bounds the uncertainties about the outcomes of two incompatible measurements on a quantum particle. This bound, however, changes if a memory device is involved… Expand