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Parallel QEC Decoding Applied to Distributed Quantum Computing
Gabriele Incardona, Davide Ferrari, Michele Amoretti·July 9, 2026
Quantum Physicscs.DCcs.PF
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Abstract
A novel parallel approach is proposed for QEC decoding based on Belief Propagation with Ordered Statistics Decoding. The main idea is to pre-process the error vectors obtained from Belief Propagation by applying Singular Value Decomposition locally to sub-regions of the lattice. The proposed approach is applied to distributed quantum computers and evaluated in terms of complexity, accuracy, and scalability.