Finite Device-Independent Extraction of a Block Min-Entropy Source against Quantum Adversaries
Quantum Physics
2023-04-20 v1
Abstract
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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Cite
@article{arxiv.2304.09643,
title = {Finite Device-Independent Extraction of a Block Min-Entropy Source against Quantum Adversaries},
author = {Ravishankar Ramanathan},
journal= {arXiv preprint arXiv:2304.09643},
year = {2023}
}
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17 pages