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Open Quantum Systems Decoherence
Entanglement Theory Quantum Correlations
Quantum Entanglement Assistance Improves the Capacity and Activates the Zero-Error Capacity of Classical Channels with Causal CSIT
arXiv
Authors: Yuhang Yao, Syed A. Jafar
Year
2026
Paper ID
35931
Status
Preprint
Abstract Read
~2 min
Abstract Words
74
Citations
N/A
Abstract
For classical point-to-point channels, it has been shown by Bennett et al. that quantum entanglement assistance cannot improve their capacity, and by Cubitt et al. that entanglement assistance cannot activate (increase from zero to non-zero) their zero-error capacity. In contrast, we show that for classical point-to-point channels with causal CSIT (channel state information at the transmitter), quantum entanglement assistance can in some cases improve their capacity, and in some cases activate their zero-error capacity.
Why This Paper Matters
- This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
- It adds a 2026 reference point for readers tracking recent quantum research.
- For classical point-to-point channels, it has been shown by Bennett et al.
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