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Quantum Advantage Without Real-Time Classical Communication in Networks with Tripartite Entangled Sources

Year: 2026

Type: conference-paper

Abstract: The distribution of multipartite entanglement is a key requirement for scalable quantum networks. While LOCC networks are theoretically universal, their reliance on quantum memories limits practical deployment. LOSR networks, which avoid real-time classical communication, offer a more feasible alternative but are fundamentally constrained when limited to bipartite sources. We conjecture that these limitations can be overcome with higher-dimensional entangled resources. Focusing on a square LOSR network with tripartite sources, we demonstrate a fidelity of$1 / 2$with GHZ states, surpassing the bound established in the literature. This result provides a concrete example of quantum advantage in LOSR networks and opens new directions for entanglement distribution under realistic constraints.

Source: International Conference on Quantum Communications, Networking, and Computing (QCNC)

DOI: 10.1109/qcnc69040.2026.00050

Authors: Leonardo Oleynik, Seid Koudia, Symeon Chatzinotas

Institutions: University of Luxembourg, Interdisciplinary Centre for Security, Reliability and Trust

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7160525191

FWCI:

Cites: 18

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Related to: 10