摘要
尽管和经典理论一样,从非相对论量子力学到相对论量子场论的量子理论采用了定域描述的方法,但本质上,量子理论却是在定域描述外衣下的空间非定域理论.从著名的EPR佯谬发难,Bell不等式的提出,GHZ定理,Hardy定理到Cabello定理,长期以来围绕Bell-GHZ-Hardy-Cabello这条空间非定域性研究路线,涌现出大量的理论和实验工作,文献汗牛充栋.迄今实验结果总是支持量子理论,但远远没能揭示出量子理论空间非定域性的本质,也未能否定隐变量的存在.这种状况使这一热点问题仍然吸引着很多人的关注和思考.我们对这条研究路线作了全面而简要地总结,系统而明确地叙述了有关的思想、概念和定理,最后给出了对它的详细评论.
Like classical theory, quantum theory including non-relativistic quantum mechanics and relativistic quantum field theory has adopted locality description. But, essentially, quantum theory is a space nonlocality theory dressed by locality description. Since EPR paradox, Bell inequality, GHZ theorem, Hardy theorem and Cabello theorem were proposed, there have been a lot of theoretical and experimental works about the space nonlocality route along Bell-GHZ-Hardy-Cabello. Up to now the experimental results all support quantum theory. However, the essence of the space nonlocality characteristics of quantum theory has not been discovered yet, nor can the existence of hidden variables be denied, a situation that keeps attracting more attention and consideration to this hot issue. Here we generalize this route concisely and specify the related ideas, definition and theorem systemically. At last we give a detailed comment on this route.
基金
高等学校博士学科点专项科研基金(20030358009)资助.
关键词
量子力学
非定域性
综述
Bell型
quantum mechanics
nonlocality
summarization
Bell-type
