论文标题
真实与否，这是问题
Real or Not Real that is the question
论文作者
论文摘要
我与约翰·贝尔（John Bell）关于量子力学中现实的讨论是回忆的。我想向读者介绍贝尔的现实愿景，这对他来说是科学家的自然地位。贝尔对“量子跳跃”有着强烈的厌恶，并坚持在措辞中清楚地表明量子力学，他的“被禁止被禁止”的话语以严肃而机智的宣告 - 都是典型的贝尔特征 - 变得传奇。我将总结贝尔型实验以及自然的反应，并讨论因贝尔的工作而导致的物理数量，实际实体和非局部性概念的含义。随后，我还解释了量子状态含义的一种完全不同的看法，这是信息理论方法，重点关注布鲁克纳和Zeilinger的工作。最后，我想将现实讨论与“虚拟性”的概念与量子场理论中发生的虚拟粒子的含义进行拓宽和对比。有了我自己的一些想法，我将结束本文，而不是哲学上的文章，而不是哲学上的文章。
My discussions with John Bell about reality in quantum mechanics are recollected. I would like to introduce the reader to Bell's vision of reality which was for him a natural position for a scientist. Bell had a strong aversion against "quantum jumps" and insisted to be clear in phrasing quantum mechanics, his "words to be forbidden" proclaimed with seriousness and wit -- both typical Bell characteristics -- became legendary. I will summarize the Bell-type experiments and what Nature responded, and discuss the implications for the physical quantities considered, the real entities and the nonlocality concept due to Bell's work. Subsequently, I also explain a quite different view of the meaning of a quantum state, this is the information theoretic approach, focussing on the work of Brukner and Zeilinger. Finally, I would like to broaden and contrast the reality discussion with the concept of "virtuality", with the meaning of virtual particle occurring in quantum field theory. With some of my own thoughts I will conclude the paper which is composed more as a historical article than as a philosophical one.
