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quant-ph2026
Affine Filtering Measurements and Their Applications to Quantum Decoding
Avijit Mandal, Noah Shutty, Henry D. Pfister +1
Unambiguous state discrimination (USD) measurements are attractive because outcomes are either marked as conclusive (i.e., error free) or inconclusive (i.e., erased). We study affi…
quant-ph2026
Towards Scalable Quaternary Message-Passing Decoding for Quantum Error Correction
Boqing Zhang, Henry D. Pfister, Hanwen Yao +1
The scalability and interpretability of message-passing (MP) decoding, such as (quaternary) Belief Propagation, remain open challenges in quantum error correction. Even for surface…
quant-ph2026
Quantum Message Passing for Factor Graphs over Finite Abelian Groups
Avijit Mandal, Henry D. Pfister
We develop a quantum message-passing framework for factor graphs over finite abelian groups. Our starting point is the task of discriminating between a collection of quantum states…