arXiv quant-ph/00070192000-07-07quant-ph

非定域性与量子理论：新的实验证据

Non-locality and quantum theory: new experimental evidence

Luigi Accardi, Massimo Regoli

备注：: 21 pages, Plain TeX, 9 eps pictures A talk given at Nottingham conference, July 2000

摘要：

从60年代后期开始，人们用Einstein-Podolsky-Rosen（EPR）型关联来验证贝尔不等式的违反。这些实验的想法是：（i）贝尔不等式是定域性的结果，因此它的实验破坏是非定域性的指示;（ii）这种破坏是典型的量子现象，因为任何经典系统进行局部选择（确定性或随机性）将产生满足这个不等式的相关性。这两个声明（i）和（ii）已被批评的量子概率理论的理由（不讨论在本文件中）和下面讨论的实验已被设计来支持这些理论论点。我们强调，我们的实验的目的不是要重现经典的EPR相关，但要证明存在完美的局部经典动力学系统违反贝尔不等式。

英文摘要：

Starting from the late 60's many experiments have been performed to verify the violation Bell's inequality by Einstein-Podolsky-Rosen (EPR) type correlations. The idea of these experiments being that: (i) Bell's inequality is a consequence of locality, hence its experimental violation is an indication of non locality; (ii) this violation is a typical quantum phenomenon because any classical system making local choices (either deterministic or random) will produce correlations satisfying this inequality. Both statements (i) and (ii) have been criticized by quantum probability on theoretical grounds (not discussed in the present paper) and the experiment discussed below has been devised to support these theoretical arguments. We emphasize that the goal of our experiment is not to reproduce classically the EPR correlations but to prove that there exist perfectly local classical dynamical systems violating Bell's inequality.

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英文摘要：

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