Quantum Advantage in Multiple Access Wiretap Channels with Entangled Transmitters
Abstract
We investigate secure communication over a classical multiple-access wiretap channel (MAC-WTC), specifically exploring the benefit of shared entanglement between the transmitters. Under the strict semantic security criterion, we derive an achievable rate region and a regularized expression for the secrecy capacity. We further establish a single-letter upper bound on the secure capacity of the MAC-WTC with entangled transmitters. Our results demonstrate that entanglement strictly enlarges the secrecy capacity of MAC-WTC compared to sharing only classical correlated randomness, a finding we illustrate using a pseudo-telepathy game example. Finally, we establish new strong soft-covering lemmas for the output statistics of multipleaccess channels (MACs) with entangled transmitters. Our results generalize existing results for non-entangled systems.
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BibTeX
@misc{zivarifard2026quantum,
title = {{Quantum Advantage in Multiple Access Wiretap Channels with Entangled Transmitters}},
author = {Hassan ZivariFard and Xiaodong Wang},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.06808},
eprint = {2609.06808},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.06808},
}
RIS
TY - UNPB
TI - Quantum Advantage in Multiple Access Wiretap Channels with Entangled Transmitters
AU - Hassan ZivariFard
AU - Xiaodong Wang
PY - 2026
DA - 2026/09/06
PB - arXiv
DO - 10.48550/arxiv.2609.06808
UR - https://arxiv.org/abs/2609.06808
AB - We investigate secure communication over a classical multiple-access wiretap channel (MAC-WTC), specifically exploring the benefit of shared entanglement between the transmitters. Under the strict semantic security criterion, we derive an achievable rate region and a regularized expression for the secrecy capacity. We further establish a single-letter upper bound on the secure capacity of the MAC-WTC with entangled transmitters. Our results demonstrate that entanglement strictly enlarges the secrecy capacity of MAC-WTC compared to sharing only classical correlated randomness, a finding we illustrate using a pseudo-telepathy game example. Finally, we establish new strong soft-covering lemmas for the output statistics of multipleaccess channels (MACs) with entangled transmitters. Our results generalize existing results for non-entangled systems.
ER -