我们现有的物理实在理论是否有替代品?
Are there alternatives to our present theories of physical reality?
摘要:
我们关于什么是物理上的“实在”的概念长期以来一直基于这样一种观念,即实在是直接理解的东西,即局部的或可观察的,物理上有形的,尽管一直存在另一种哲学观念,即“实在”是超越直接理解的某种本体论结构,因此无法通过物理学实现。然而,量子力学及其内在的非定域相关性,似乎给我们留下了一个两难境地,即基本物理理论不可能既是真实的又是定域的。现实不能被重建为从物理观测的确定性投影。许多人认为问题出在量子力学上,但事实上,它更可能是不切实际的期望的结果。我们已经假定,基础物理学应该与正常的(宏观的)经验相容。然而,如果我们超越当前的高级物理理论,进入构建它们的基本元素,我们就会看到一种模式出现,让我们对物理“现实”的含义有一个非常不同且更加连贯的理解。
英文摘要:
Our notions of what is physically 'real' have long been based on the idea that the real is what is immediately apprehended, that is the local or observable, the physically tangible, though there has always been an alternative philosophical notion that the 'real' is some kind of ontological structure beyond immediate apprehension, and so inaccessible through physics. However, quantum mechanics, with its intrinsic nonlocal correlations, has seemingly left us with a dilemma by showing that fundamental physical theories cannot be both real and local. Reality cannot be reconstructed as a deterministic projection from physical observations. Many people think that the problem lies with quantum mechanics, but, in fact, it is more likely to be a result of unrealistic expectations. We have assumed that fundamental physics ought to be compatible with normal (macroscopic) experience. If, however, we go beyond our current high-level physical theories to the basic elements from which they are constructed, we see that a pattern emerges that gives us a very different and much more coherent understanding of what is meant by physical 'reality'.
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