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arXiv · 2309.16907

Nonlocality via multiqubit orthogonal product bases

Lin Chen·Yutong Jiang
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Abstract

We investigate the quantum nonlocality via the discrimination on two, three and four-qubit orthogonal product bases (OPBs). We show that every two-qubit, and some three and four-qubit OPBs can be locally distinguished. It turns out that the remaining three and four-qubit OPBs cannot be locally distinguished, and thus they show the quantum nonlocality without entanglement. We also distinguish them by merging some systems using quantum teleportation with assisted Bell states.

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Lin Chen, Yutong Jiang. 2023-09-29. Nonlocality via multiqubit orthogonal product bases. https://arxiv.org/abs/2309.16907

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