aiqbench analysis
This research addresses a critical bottleneck in quantum networking by optimizing encoded teleportation under strict latency constraints. The authors demonstrate that code puncturing allows systems to dynamically adapt effective codeword lengths, balancing the tradeoff between entanglement acquisition delays and memory decoherence without sacrificing structural stability. These findings provide essential theoretical guidance for building reliable, resource-aware quantum communication protocols where timing is as vital as fidelity.
Latency-Constrained Encoded Quantum Teleportation with Punctured Codes
arXiv:2607.19770v1 Announce Type: new Abstract: Quantum teleportation is a key protocol for transmitting quantum information using entanglement and classical communication. Its reliability is constrained by both the availability and fidelity of shared entangled pairs, which are affected by stochastic generation and memory decoherence. In this work, we focus on encoded teleportation, in which quantum information is encoded using a quantum error-correcting code and transmitted as a codeword. We evaluate reliability in terms of logical error probability, considering latency-constrained settings where entanglement is accumulated over time and degrades while in memory. We develop a unified framework that captures the interaction between entanglement availability, decoherence, and coding decisions. Our results show that the benefits of longer codes depend on the availability and fidelity of entangled pairs, as acquiring additional resources introduces delays that can reduce their quality. To address this latency-reliability tradeoff, we leverage code puncturing to enable flexible encoded teleportation, allowing the effective code length to adapt across different latency regimes while preserving a common stabilizer structure. Numerical results show that encoded teleportation can provide substantial reliability gains over uncoded transmission under a common entanglement-acquisition latency constraint, and that selecting appropriate punctured codes improves performance across varying latency budgets. Overall, our results highlight the importance of resource-aware adaptation for reliable quantum networking.
Abstract:Quantum teleportation is a key protocol for transmitting quantum information using entanglement and classical communication. Its reliability is constrained by both the availability and fidelity of shared entangled pairs, which are affected by stochastic generation and memory decoherence. In this work, we focus on encoded teleportation, in which quantum information is encoded using a quantum error-correcting code and transmitted as a codeword. We evaluate reliability in terms of logical error probability, considering latency-constrained settings where entanglement is accumulated over time and degrades while in memory. We develop a unified framework that captures the interaction between entanglement availability, decoherence, and coding decisions. Our results show that the benefits of longer codes depend on the availability and fidelity of entangled pairs, as acquiring additional resources introduces delays that can reduce their quality. To address this latency-reliability tradeoff, we leverage code puncturing to enable flexible encoded teleportation, allowing the effective code length to adapt across different latency regimes while preserving a common stabilizer structure. Numerical results show that encoded teleportation can provide substantial reliability gains over uncoded transmission under a common entanglement-acquisition latency constraint, and that selecting appropriate punctured codes improves performance across varying latency budgets. Overall, our results highlight the importance of resource-aware adaptation for reliable quantum networking.
9 pages, 9 figures. Accepted for publication at IEEE International Conference on Quantum Computing and Engineering (QCE26)- Quantum Networking & Communications (QNET) Technical Papers track. This work was funded by the Danish National Research Foundation (DNRF) through the Center CLASSIQUE
Quantum Physics (quant-ph); Information Theory (cs.IT); Networking and Internet Architecture (cs.NI)
arXiv:2607.19770 [quant-ph]
(or arXiv:2607.19770v1 [quant-ph] for this version)
https://doi.org/10.48550/arXiv.2607.19770 arXiv-issued DOI via DataCite (pending registration)
Full text under the publisher's open licence · 272 words
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