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arXiv 0903.4339quant-ph
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决定论的失败与玻姆隐变量理论的局限

The fail of determinism and the limits of Bohm hidden variable theory

Ramon Lapiedra

摘要:

我们给出一个反例来说明决定论本身与量子力学是矛盾的。更准确地说,我们考虑一个简单的量子系统和它的环境,包括测量设备,并假设全球系统的时间演化,量子系统加上这个环境,是确定的,即。例如,时间演化由来自某些初始条件的动力学轨迹给出。在此基础上,证明了一类不符合量子力学的贝尔不等式,得出了量子系统是以非确定性方式演化的结论.为了抓住这一结论的趣味性,人们必须认识到,它不能从量子力学预言的贝尔不等式的当前实验违背中得出,因为这种违背与非定域实在论相容。

英文摘要:

We give a counter example to show that determinism as such is in contradiction to quantum mechanics. More precisely, we consider a simple quantum system and its environment, including the measurement device, and make the assumption that the time evolution of the global system, the quantum system plus this environment, is deterministic, i. e., the time evolution is given by a dynamical trajectory from some initial conditions. From this, we prove a type of Bell inequalities which are violated by quantum mechanics, reaching the conclusion that our quantum system evolves in a non deterministic way. In order to seize the interest of this conclusion, one must realize that it cannot be reached from the present experimental violation of Bell inequalities predicted by quantum mechanics, since this violation is compatible with non-local realism.

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