All reversible dynamics in maximally nonlocal theories are trivial.
All reversible dynamics in maximally nonlocal theories are trivial.
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最大非局部理论中的所有可逆动力学都是微不足道的。
DOI：
10.1103/physrevlett.104.080402
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发表时间：
2009
影响因子：
8.6
通讯作者：
O. Dahlsten
中科院分区：
文献类型：
--
作者：
D. Gross;Markus P. Müller;R. Colbeck;O. Dahlsten
量子理论的一个显著特征是非定域性（贝尔不等式违反）。然而，量子关联并不是最大的非定域性，人们自然会问，是否有令人信服的理由来拒绝那些可能存在更强违反的理论。为了阐明这个问题，我们考虑后量子理论，其中出现最大非局域态（非局域盒）。我们表明，可逆变换在这样的理论是微不足道的：它们只包括本地操作和置换系统。特别是，没有相关性可以创建;非本地盒不能从产品状态和经典计算机可以有效地模拟所有这些过程。
A remarkable feature of quantum theory is nonlocality (Bell inequality violations). However, quantum correlations are not maximally nonlocal, and it is natural to ask whether there are compelling reasons for rejecting theories in which stronger violations are possible. To shed light on this question, we consider post-quantum theories in which maximally nonlocal states (nonlocal boxes) occur. We show that reversible transformations in such theories are trivial: they consist solely of local operations and permutations of systems. In particular, no correlations can be created; nonlocal boxes cannot be prepared from product states and classical computers can efficiently simulate all such processes.