Quantum
Nonlocality as a Benchmarking Tool for Quantum Processors
Publication: quant-ph updates on arXiv.org
Author: Andr\'es Camilo Granda Arango, Carla Sophie Rieger, Carlo Cuccu, Giuseppe Sergioli, Luigi Iapichino, Tobias Valentin Bauer, Roberto Giuntini, Federico Hern\'an Holik
Source published: 20/10/2026, 04:00:00 UTC
Briefing created: 20/10/2026, 04:18:57 UTC
Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 20/10/2026, 04:13:24 UTC.
Briefings
A 2026 study using the Svetlichny inequality benchmarking protocol evaluated two quantum processors: the superconducting system 'Garnet' (IQM) and the ion-trap system 'Marmot' (AQT). The research compared these devices against Mermin's inequality across three to five qubits and full register tests, finding that genuine multipartite nonlocality tests effectively characterize collective performance and guide calibration.
Key points
- The study compares the Svetlichny inequality benchmarking protocol against Mermin's inequality for evaluating quantum processors.
- Two quantum processors were tested: the superconducting system 'Garnet' (IQM) and the ion-trap system 'Marmot' (AQT).
Context
Benchmarking quantum processors is a central task in quantum roadmap development. This study applies the Svetlichny inequality protocol to characterize collective performance and guide calibration for two distinct hardware platforms.
Limitations
Results are limited to two specific processors (Garnet and Marmot) and three to five qubits. Simultaneous triplet tests were conducted across the full register, but specific qubit location dependencies were not fully characterized in this snapshot.
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