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arXiv 2009.01646quant-ph
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Stern-Gerlach测量对海森堡误差-扰动关系的破坏

Violation of Heisenberg's error-disturbance relation by Stern-Gerlach measurements

Yuki Inoue, Masanao Ozawa

摘要:

虽然海森伯的不确定原理是由一个严格证明的关于量子态的内在不确定性的关系来表示的,但海森伯的误差-扰动关系(EDR)通常被认为是该原理的另一个方面。然而,量子测量理论的最新发展使得海森堡的EDR可以被测试以观察其违反。在这里,我们研究了Stern-Gerlach测量的EDR。在以前的报告[arXiv:1910.07929]中,已经指出他们的EDR接近理论最优值。本笔记报告说,即使是1922年最初的施特恩-格拉赫实验,现有的实验数据显示,违反海森堡的EDR。结果表明,海森伯的EDR比人们长期认为的更普遍地被违反。

英文摘要:

Although Heisenberg's uncertainty principle is represented by a rigorously proven relation about intrinsic indeterminacy in quantum states, Heisenberg's error-disturbance relation (EDR) has been commonly believed as another aspect of the principle. However, recent developments of quantum measurement theory made Heisenberg's EDR testable to observe its violations. Here, we study the EDR for Stern-Gerlach measurements. In a previous report [arXiv:1910.07929], it has been pointed out that their EDR is close to the theoretical optimal. The present note reports that even the original Stern-Gerlach experiment in 1922, the available experimental data show, violates Heisenberg's EDR. The results suggest that Heisenberg's EDR is more ubiquitously violated than it has long been supposed.

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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