SAMOP 2023 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
QI: Fachverband Quanteninformation
QI 35: Quantum Computers: Algorithms and Benchmarking
QI 35.6: Vortrag
Freitag, 10. März 2023, 12:15–12:30, B305
Principles of Quantum Functional Testing — Nadia Milazzo1,2,3, Olivier Giraud2, •Giovanni Gramegna1, and Daniel Braun1 — 1Institut für theoretische Physik, Universität Tübingen, 72076 Tübingen, Germany — 2Université Paris Saclay, CNRS, LPTMS, Orsay 91405, Franc — 3ColibrITD, 91, rue du Faubourg Saint-Honoré 75008 Paris
Testing the functionality of quantum devices will be needed as their availability increases. In this context, a complete characterization of the quantum channel implemented by the device is unfeasible except for the simplest and smallest quantum chips. Rather, quantum functional testing aims at determining as fast as possible whether the device can be accepted or rejected according to the producer pecifications on the key characterizing parameters. In particular, it is desirable to waste as little time as possible on devices that do not function properly. We investigate the possibility to speed up the testing process by using repetition of the channel: on one hand this would increase the impact of coherent errors enhancing their detectability, on the other hand the amplification of incoherent errors might have the opposite effect. This also motivates the introduction of non-greedy adaptive experimental design, where the decision on whether to repeat the channel or more generally which sequence of measurement to perform is established based on the information already gathered from previous measurements. Finally, we investigate the impact of different decision criteria on the efficiency of the testing procedure