On Finite-Blocklength Noisy Classical-Quantum Channel Coding With Amplitude Damping Errors
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866916956147286016 |
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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 |