Multi-client distributed blind quantum computation with the Qline architecture.

Autor: Polacchi B; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, I-00185, Roma, Italy., Leichtle D; Laboratoire d'Informatique de Paris 6, CNRS, Sorbonne Université, 75005, Paris, France., Limongi L; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, I-00185, Roma, Italy., Carvacho G; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, I-00185, Roma, Italy., Milani G; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, I-00185, Roma, Italy., Spagnolo N; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, I-00185, Roma, Italy., Kaplan M; VeriQloud, 13 rue Victor Hugo, 92120, Montrouge, France. kaplan@veriqloud.fr., Sciarrino F; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, I-00185, Roma, Italy. fabio.sciarrino@uniroma1.it., Kashefi E; Laboratoire d'Informatique de Paris 6, CNRS, Sorbonne Université, 75005, Paris, France. elham.kashefi@lip6.fr.; School of Informatics, University of Edinburgh, 10 Crichton Street, EH8 9AB, Edinburgh, UK. elham.kashefi@lip6.fr.; National Quantum Computing Centre, Didcot, OX11 0QX, UK. elham.kashefi@lip6.fr.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2023 Nov 25; Vol. 14 (1), pp. 7743. Date of Electronic Publication: 2023 Nov 25.
DOI: 10.1038/s41467-023-43617-0
Abstrakt: Universal blind quantum computing allows users with minimal quantum resources to delegate a quantum computation to a remote quantum server, while keeping intrinsically hidden input, algorithm, and outcome. State-of-art experimental demonstrations of such a protocol have only involved one client. However, an increasing number of multi-party algorithms, e.g. federated machine learning, require the collaboration of multiple clients to carry out a given joint computation. In this work, we propose and experimentally demonstrate a lightweight multi-client blind quantum computation protocol based on a recently proposed linear quantum network configuration (Qline). Our protocol originality resides in three main strengths: scalability, since we eliminate the need for each client to have its own trusted source or measurement device, low-loss, by optimizing the orchestration of classical communication between each client and server through fast classical electronic control, and compatibility with distributed architectures while remaining intact even against correlated attacks of server nodes and malicious clients.
(© 2023. The Author(s).)
Databáze: MEDLINE
Externí odkaz: