Title
Cross-Verification of Independent Quantum Devices
Author
T. F. Demarie
Entropica Labs
Author
M. Ringbauer
Institut für Experimentalphysik, Universität Innsbruck
... show all
Abstract
Quantum computers are on the brink of surpassing the capabilities of even the most powerful classical computers, which naturally raises the question of how one can trust the results of a quantum computer when they cannot be compared to classical simulation Here, we present a cross-verification technique that exploits the principles of measurement-based quantum computation to link quantum circuits of different input size, depth, and structure. Our technique enables consistency checks of quantum computations between independent devices, as well as within a single device. We showcase our protocol by applying it to five state-of-the-art quantum processors, based on four distinct physical architectures: nuclear magnetic resonance, superconducting circuits, trapped ions, and photonics, with up to six qubits and up to 200 distinct circuits.
Keywords
Measurement-based quantum computingOptical quantum information processingQuantum benchmarkingQuantum computationQuantum information with solid state qubitsQuantum information with trapped ions
Object type
Language
English [eng]
Persistent identifier
https://phaidra.univie.ac.at/o:1603128
Appeared in
Title
Physical Review X
Volume
11
Issue
3
ISSN
2160-3308
Issued
2021
Publisher
American Physical Society (APS)
Date issued
2021
Access rights
University of Vienna | Universitätsring 1 | 1010 Vienna | T +43-1-4277-0