arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0812.0349quant-ph
收藏

非定域性

Nonlocality without nonlocality

Steven Weinstein

摘要:

贝尔定理旨在证明支撑量子力学的局部“隐变量”理论的不可能性。它依赖于众所周知的“局部性”假设,也依赖于一个很少被检验的称为“统计独立性"的假设。违反这一假设被认为是“反向因果关系”、自然的“阴谋”或对“自由意志”的否定。我们将在这里证明,这些都是虚假的担忧,而否定SI仅仅意味着类空自由度之间的非定域相关。SI不成立的洛伦兹不变理论很容易构造:这里展示了两个。在此基础上,我们证明量子力学现象终究可以用定域理论来模拟。

英文摘要:

Bell's theorem is purported to demonstrate the impossibility of a local "hidden variable" theory underpinning quantum mechanics. It relies on the well-known assumption of `locality', and also on a little-examined assumption called `statistical independence' (SI). Violations of this assumption have variously been thought to suggest "backward causation", a "conspiracy" on the part of nature, or the denial of "free will". It will be shown here that these are spurious worries, and that denial of SI simply implies nonlocal correlation between spacelike degrees of freedom. Lorentz-invariant theories in which SI does not hold are easily constructed: two are exhibited here. It is conjectured, on this basis, that quantum-mechanical phenomena may be modeled by a local theory after all.

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。

↑