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Strong converse for identification via quantum channels
We present a simple proof of the strong converse for identification via discrete memoryless quantum channels of Ahlswede's approach to classical channels, based on a novel covering lemma. Expand
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Distillation of secret key and entanglement from quantum states
  • I. Devetak, A. Winter
  • Mathematics, Physics
  • Proceedings of the Royal Society A: Mathematical…
  • 11 June 2003
We study and solve the problem of distilling a secret key from quantum states representing correlation between two parties (Alice and Bob) and an eavesdropper (Eve) via one–way public discussion: weExpand
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Information causality as a physical principle
Quantum physics has remarkable distinguishing characteristics. For example, it gives only probabilistic predictions (non-determinism) and does not allow copying of unknown states (no-cloning).Expand
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Operational Resource Theory of Coherence.
We establish an operational theory of coherence (or of superposition) in quantum systems, by focusing on the optimal rate of performance of certain tasks. Namely, we introduce the two basicExpand
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Structure of States Which Satisfy Strong Subadditivity of Quantum Entropy with Equality
We give an explicit characterisation of the quantum states which saturate the strong subadditivity inequality for the von Neumann entropy. By combining a result of Petz characterising the equalityExpand
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“Squashed entanglement”: An additive entanglement measure
In this paper, we present a new entanglement monotone for bipartite quantum states. Its definition is inspired by the so-called intrinsic information of classical cryptography and is given by theExpand
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Entanglement and the foundations of statistical mechanics
Statistical mechanics is one of the most successful areas of physics. Yet, almost 150 years since its inception, its foundations and basic postulates are still the subject of debate. Here we suggestExpand
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Quantum mechanical evolution towards thermal equilibrium.
The circumstances under which a system reaches thermal equilibrium, and how to derive this from basic dynamical laws, has been a major question from the very beginning of thermodynamics andExpand
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Coding theorem and strong converse for quantum channels
  • A. Winter
  • Mathematics, Computer Science
  • IEEE Trans. Inf. Theory
  • 1 November 1999
We present a new proof of Holevo's (1973, 1977) coding theorem for transmitting classical information through quantum channels, and its strong converse. Expand
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Quantum State Merging and Negative Information
We consider a quantum state shared between many distant locations, and define a quantum information processing primitive, state merging, that optimally merges the state into one location. AsExpand
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