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arXiv 2404.09759quant-ph
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贝尔实验中对量子力学瞬态偏离的检验

Test of transient deviations from Quantum Mechanics in Bell's experiment

Alejandro Hnilo, Mónica Agüero, Marcelo Kovalsky, Myriam Nonaka

AI总结:

本研究针对量子力学与定域实在论的冲突相关的瞬态偏离假说,利用最长24米的光学贝尔装置开展频闪检验,未发现瞬态偏离证据,大幅压缩了该假说的成立空间。

摘要:

量子力学(QM)与定域实在论之间的冲突在空间延展纠缠态的远距离区域间观测到的关联中表现得最为显著。有假说提出,若在短于L/c的时间内测量关联,可能会观测到(与QM预测值的)瞬态偏离,其中L为纠缠态的空间延展尺度,c为光速。该假说颇具吸引力,因为它通过最小程度修正量子力学的诠释解决了这一冲突,还为探索可能富有成效的量子力学非线性推广开辟了道路,且不会存在允许超光速信号传递的风险。目前直接检验这一假说在技术上尚不可行,但频闪检验是可以实现的。我们展示了在专门设计的光学贝尔装置上开展的此类检验的结果,该装置的站点间直线距离最长达24米。实验未发现与短距离下开展的相同观测结果存在差异,也未找到瞬态偏离的证据。不过本实验涉及若干假说,文中对这些假说进行了详细说明并简要讨论。退一步说,瞬态偏离假说的成立空间已被大幅压缩。

英文摘要:

The conflict between Quantum Mechanics (QM) and Local Realism is most noticeable in the correlations observed between distant regions of a spatially spread entangled state. It has been hypothesized that transient deviations (from the values predicted by QM) may be observed if the correlations are measured in a time shorter than L/c, where L is the spatial spread of the entangled state and c is the speed of light. This hypothesis is appealing for it solves that conflict by minimally modifying the interpretation of QM, and opens the door to potentially fruitful nonlinear generalizations of QM without the risk of allowing faster-than-light signaling. The hypothesis is technically impossible to test directly nowadays, but a stroboscopic test is attainable. We present the results of such a test performed on a specially designed optical Bell setup with a distance between stations up to 24 m in straight line. No difference with the same observations performed at short distance, or evidence of transient deviations, is found. Yet, several hypotheses are involved in this experiment; they are detailed and briefly discussed. To say the least, the space left for the hypothesis of transient deviations is much reduced.

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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