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Scaling Trust in Quantum Federated Learning: A Multi-Protocol Privacy Design

Published: December 3, 2025 | arXiv ID: 2512.03358v1

By: Dev Gurung, Shiva Raj Pokhrel

Potential Business Impact:

Keeps private data safe during AI training.

Business Areas:
Quantum Computing Science and Engineering

Quantum Federated Learning (QFL) promises to revolutionize distributed machine learning by combining the computational power of quantum devices with collaborative model training. Yet, privacy of both data and models remains a critical challenge. In this work, we propose a privacy-preserving QFL framework where a network of $n$ quantum devices trains local models and transmits them to a central server under a multi-layered privacy protocol. Our design leverages Singular Value Decomposition (SVD), Quantum Key Distribution (QKD), and Analytic Quantum Gradient Descent (AQGD) to secure data preparation, model sharing, and training stages. Through theoretical analysis and experiments on contemporary quantum platforms and datasets, we demonstrate that the framework robustly safeguards data and model confidentiality while maintaining training efficiency.

Country of Origin
🇦🇺 Australia

Page Count
12 pages

Category
Computer Science:
Cryptography and Security