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arXiv 2101.02152quant-ph
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使用上下文时间相关性和非侵入性测量的时间Peres-Mermin不等式违反的实验证明

Experimental demonstration of the violation of the temporal Peres-Mermin inequality using contextual temporal correlations and noninvasive measurements

Dileep Singh, Arvind, Kavita Dorai

摘要:

本文提出了一种广义量子散射电路,它可以用来进行非侵入性的量子测量,并在NMR量子比特上实现。这种测量是测试时间非上下文不平等的关键要求。我们使用该电路在三量子位NMR量子信息处理器上实验证明了Peres-Mermin不等式(这是Klyachko-Can- Binicioglu-Shumovsky(KCBS)不等式的时间模拟)的违反。此外,我们实验证明了一个转换的贝尔型不等式(空间等价的时间KCBS不等式)的违反,并表明其Tsirelson界是相同的时间KCBS不等式。在时态KCBS场景中,上下文边界严格低于量子时态和非局部边界。

英文摘要:

We present a generalized quantum scattering circuit which can be used to perform non-invasive quantum measurements, and implement it on NMR qubits. Such a measurement is a key requirement for testing temporal non-contextual inequalities. We use this circuit to experimentally demonstrate the violation of the Peres-Mermin inequality (which is the temporal analog of a Klyachko-Can- Binicioglu-Shumovsky (KCBS) inequality), on a three-qubit NMR quantum information processor. Further, we experimentally demonstrate the violation of a transformed Bell-type inequality (the spatial equivalent of the temporal KCBS inequality) and show that its Tsirelson bound is the same as that for the temporal KCBS inequality. In the temporal KCBS scenario, the contextual bound is strictly lower than the quantum temporal and nonlocal bounds.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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