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Finite Device-Independent Extraction of a Block Min-Entropy Source against Quantum Adversaries
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The extraction of randomness from weakly random seeds is a problem of central importance with multiple applications. In the device-independent setting, this problem of quantum randomness amplification has been mainly restricted to specific weak sources of Santha-Vazirani type, while extraction from the general min-entropy sources has required a large number of separated devices which is impractical. In this paper, we present a device-independent protocol for amplification of a single min-entropy source (consisting of two blocks of sufficiently high min-entropy) using a device consisting of two spatially separated components and show a proof of its security against general quantum adversaries.
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Cited by 2 Pith papers
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An efficient construction of Raz's two-source randomness extractor with improved parameters
A quasi-linear-time version of Raz's two-source extractor with reduced entropy requirements, quantum-proof variants, and an open-source implementation.
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No Bound Randomness in Quantum Nonlocality
Any nonlocal quantum behavior certifies some device-independent randomness when all input pairs are used for generation; the input-averaged guessing probability is a faithful, monotonic nonlocality measure.
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