Dresden 2026 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
QI: Fachverband Quanteninformation
QI 5: Quantum Computing and Algorithms II
QI 5.3: Talk
Tuesday, March 10, 2026, 10:00–10:15, BEY/0137
Verifiable End-to-End Delegated Variational Quantum Algorithms — •Matteo Inajetovic1, Petros Wallden2, and Anna Pappa1 — 1Technische Universität Berlin, Berlin, Germany — 2Quantum Software Lab, School of Informatics, University of Edinburgh, Edinburgh, UK
Variational quantum algorithms (VQAs) have emerged as promising candidates for solving complex optimization and machine learning tasks on near-term quantum hardware. However, executing quantum operations remains challenging for small-scale users because of several hardware constraints, making it desirable to delegate parts of the computation to more powerful quantum devices. In this work, we introduce a framework for delegated variational quantum algorithms (DVQAs), where a client with limited quantum capabilities delegates the execution of a VQA to a more powerful quantum server. In particular, we introduce a protocol that enables a client to delegate a variational quantum algorithm to a server while ensuring that the input, the output and also the computation itself remain secret. Additionally, if the protocol does not abort, the client can be certain that the computation outcome is indeed correct. Our approach first proposes a verifiable protocol for delegating the quantum computation at each optimization step of a VQA, and then combines the iterative steps into an error-resilient optimization process that offers end-to-end verifiable algorithm execution, paving the way for practical quantum cloud computing applications.
Keywords: Delegated Quantum Computing; Variational Quantum Algorithms; Quantum Algorithms; Quantum Verification; Quantum Protocols