Please use this identifier to cite or link to this item: https://doi.org/10.1103/physrevx.11.031049
Title: Cross-Verification of Independent Quantum Devices
Authors: Greganti, C.
Demarie, T. F.
Ringbauer, M.
Jones, J. A.
Saggio, V
Calafell, I. Alonso
Rozema, L. A.
Erhard, A.
Meth, M.
Postler, L.
Stricker, R.
Schindler, P.
Blatt, R.
Monz, T.
Walther, P.
Fitzsimons, J. F. 
Issue Date: 2-Sep-2021
Publisher: American Physical Society
Citation: Greganti, C., Demarie, T. F., Ringbauer, M., Jones, J. A., Saggio, V, Calafell, I. Alonso, Rozema, L. A., Erhard, A., Meth, M., Postler, L., Stricker, R., Schindler, P., Blatt, R., Monz, T., Walther, P., Fitzsimons, J. F. (2021-09-02). Cross-Verification of Independent Quantum Devices. Physical Review X 11 (3) : 31049. ScholarBank@NUS Repository. https://doi.org/10.1103/physrevx.11.031049
Rights: Attribution 4.0 International
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. © 2021 authors. Published by the American Physical Society.
Source Title: Physical Review X
URI: https://scholarbank.nus.edu.sg/handle/10635/232026
ISSN: 2160-3308
DOI: 10.1103/physrevx.11.031049
Rights: Attribution 4.0 International
Appears in Collections:Staff Publications
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