When Federated Learning Meets Quantum Computing: Survey and Research Opportunities

Fuente: arXiv
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Main Authors: Mathur, Aakar, Gupta, Ashish, Das, Sajal K.
Format: Preprint
Published: 2025
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author Mathur, Aakar
Gupta, Ashish
Das, Sajal K.
author_facet Mathur, Aakar
Gupta, Ashish
Das, Sajal K.
contents Quantum Federated Learning (QFL) is an emerging field that harnesses advances in Quantum Computing (QC) to improve the scalability and efficiency of decentralized Federated Learning (FL) models. This paper provides a systematic and comprehensive survey of the emerging problems and solutions when FL meets QC, from research protocol to a novel taxonomy, particularly focusing on both quantum and federated limitations, such as their architectures, Noisy Intermediate Scale Quantum (NISQ) devices, and privacy preservation, so on. With the introduction of two novel metrics, qubit utilization efficiency and quantum model training strategy, we present a thorough analysis of the current status of the QFL research. This work explores key developments and integration strategies, along with the impact of QC on FL, keeping a sharp focus on hybrid quantum-classical approaches. The paper offers an in-depth understanding of how the strengths of QC, such as gradient hiding, state entanglement, quantum key distribution, quantum security, and quantum-enhanced differential privacy, have been integrated into FL to ensure the privacy of participants in an enhanced, fast, and secure framework. Finally, this study proposes potential future directions to address the identified research gaps and challenges, aiming to inspire faster and more secure QFL models for practical use.
format Preprint
id arxiv_https___arxiv_org_abs_2504_08814
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle When Federated Learning Meets Quantum Computing: Survey and Research Opportunities
Mathur, Aakar
Gupta, Ashish
Das, Sajal K.
Distributed, Parallel, and Cluster Computing
Emerging Technologies
Machine Learning
Neural and Evolutionary Computing
Quantum Federated Learning (QFL) is an emerging field that harnesses advances in Quantum Computing (QC) to improve the scalability and efficiency of decentralized Federated Learning (FL) models. This paper provides a systematic and comprehensive survey of the emerging problems and solutions when FL meets QC, from research protocol to a novel taxonomy, particularly focusing on both quantum and federated limitations, such as their architectures, Noisy Intermediate Scale Quantum (NISQ) devices, and privacy preservation, so on. With the introduction of two novel metrics, qubit utilization efficiency and quantum model training strategy, we present a thorough analysis of the current status of the QFL research. This work explores key developments and integration strategies, along with the impact of QC on FL, keeping a sharp focus on hybrid quantum-classical approaches. The paper offers an in-depth understanding of how the strengths of QC, such as gradient hiding, state entanglement, quantum key distribution, quantum security, and quantum-enhanced differential privacy, have been integrated into FL to ensure the privacy of participants in an enhanced, fast, and secure framework. Finally, this study proposes potential future directions to address the identified research gaps and challenges, aiming to inspire faster and more secure QFL models for practical use.
title When Federated Learning Meets Quantum Computing: Survey and Research Opportunities
topic Distributed, Parallel, and Cluster Computing
Emerging Technologies
Machine Learning
Neural and Evolutionary Computing
url https://arxiv.org/abs/2504.08814