On Finite-Blocklength Noisy Classical-Quantum Channel Coding With Amplitude Damping Errors

Fuente: arXiv
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Main Authors: Havas, Tamás, Lin, Hsuan-Yin, Rosnes, Eirik, Lai, Ching-Yi
Format: Preprint
Published: 2025
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author Havas, Tamás
Lin, Hsuan-Yin
Rosnes, Eirik
Lai, Ching-Yi
author_facet Havas, Tamás
Lin, Hsuan-Yin
Rosnes, Eirik
Lai, Ching-Yi
contents We investigate practical finite-blocklength classical-quantum channel coding over the quantum amplitude damping channel (ADC), aiming to transmit classical information reliably through quantum outputs. Our findings indicate that for any finite blocklength, a naive (uncoded) approach fails to offer any advantage over the ADC. Instead, sophisticated encoding strategies that leverage both classical error-correcting codes and quantum input states are crucial for realizing quantum performance gains at finite blocklengths.
format Preprint
id arxiv_https___arxiv_org_abs_2509_14852
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On Finite-Blocklength Noisy Classical-Quantum Channel Coding With Amplitude Damping Errors
Havas, Tamás
Lin, Hsuan-Yin
Rosnes, Eirik
Lai, Ching-Yi
Information Theory
Quantum Physics
We investigate practical finite-blocklength classical-quantum channel coding over the quantum amplitude damping channel (ADC), aiming to transmit classical information reliably through quantum outputs. Our findings indicate that for any finite blocklength, a naive (uncoded) approach fails to offer any advantage over the ADC. Instead, sophisticated encoding strategies that leverage both classical error-correcting codes and quantum input states are crucial for realizing quantum performance gains at finite blocklengths.
title On Finite-Blocklength Noisy Classical-Quantum Channel Coding With Amplitude Damping Errors
topic Information Theory
Quantum Physics
url https://arxiv.org/abs/2509.14852