A glance beyond the quantum model
A glance beyond the quantum model
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DOI：
10.1098/rspa.2009.0453
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发表时间：
2010-03-08
影响因子：
3.5
通讯作者：
Wunderlich, Harald
中科院分区：
文献类型：
--
作者：
Navascues, Miguel;Wunderlich, Harald
物理学中最重要的问题之一是调和量子力学和广义相对论，一些作者认为这可能是以放弃量子形式主义而支持更普遍的理论为代价实现的。在这里，我们提出了一种机制，通过假设任何后量子理论都应该在宏观极限中恢复经典物理，对宇宙的微观结构提出一般性的要求。我们用这种机制来约束任何物理理论中遥远观察者之间的相关性强度。虽然恢复了几个量子极限，例如两点量子量子纠缠器的集合，但我们的结果表明，存在合理的自然微观理论，预测在任何量子力学系统中不可能重现的相关性。
One of the most important problems in physics is to reconcile quantum mechanics with general relativity, and some authors have suggested that this may be realized at the expense of having to drop the quantum formalism in favour of a more general theory. Here, we propose a mechanism to make general claims on the microscopic structure of the Universe by postulating that any post-quantum theory should recover classical physics in the macroscopic limit. We use this mechanism to bound the strength of correlations between distant observers in any physical theory. Although several quantum limits are recovered, such as the set of two-point quantum correlators, our results suggest that there exist plausible microscopic theories of Nature that predict correlations impossible to reproduce in any quantum mechanical system.