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Trapped Ion Quantum Computing Quantum Foundations

Contextuality witness inspired by optimal state discrimination

arXiv

Authors: Carles Roch I Carceller, Jonatan Bohr Brask

Year

2023

Paper ID

53641

Status

Preprint

Abstract Read

~2 min

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Abstract

Many protocols and tasks in quantum information science rely inherently on the fundamental notion of contextuality to provide advantages over their classical counterparts, and contextuality represents one of the main differences between quantum and classical physics. In this work we present a witness for preparation contextuality inspired by optimal two-state discrimination. The main idea is based on finding the accessible averaged success and error probabilities in both classical and quantum models. We can then construct a noncontextuality inequality and associated witness which we find to be robust against depolarising noise and loss in the form of inconclusive events.

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This paper contributes to the Quantum Foundations research area in the Quantum Articles archive.
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Many protocols and tasks in quantum information science rely inherently on the fundamental notion of contextuality to provide advantages over their classical counterparts, and...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2310.12716 [2] arXiv https://arxiv.org/abs/2310.12716 [3] Publisher https://arxiv.org/abs/2310.12716

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