Closing objectivity loophole in Bell tests on a public quantum computer

Fuente: arXiv
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Autores principales: Bednorz, Adam, Batle, Josep, Białecki, Tomasz, Korbicz, Jarosław K.
Formato: Preprint
Publicado: 2025
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author Bednorz, Adam
Batle, Josep
Białecki, Tomasz
Korbicz, Jarosław K.
author_facet Bednorz, Adam
Batle, Josep
Białecki, Tomasz
Korbicz, Jarosław K.
contents We have constructed and run a Bell test of local realism focusing on the objectivity criterion. The objectivity means that the outcomes are confirmed macroscopically by a few observers at each party. The IBM Quantum and IonQ devices turn out to be sufficiently accurate to pass such an extended Bell-type test, although at the price of communication loopholes and residual but statistically significant signaling. The test also serves as the benchmark of entanglement spread across larger sets of qubits.
format Preprint
id arxiv_https___arxiv_org_abs_2506_08940
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Closing objectivity loophole in Bell tests on a public quantum computer
Bednorz, Adam
Batle, Josep
Białecki, Tomasz
Korbicz, Jarosław K.
Quantum Physics
We have constructed and run a Bell test of local realism focusing on the objectivity criterion. The objectivity means that the outcomes are confirmed macroscopically by a few observers at each party. The IBM Quantum and IonQ devices turn out to be sufficiently accurate to pass such an extended Bell-type test, although at the price of communication loopholes and residual but statistically significant signaling. The test also serves as the benchmark of entanglement spread across larger sets of qubits.
title Closing objectivity loophole in Bell tests on a public quantum computer
topic Quantum Physics
url https://arxiv.org/abs/2506.08940