Gisin Nicolas
Group of Applied Physics, University of Geneva, 1211 Geneva 4, Switzerland.
Entropy (Basel). 2018 Feb 2;20(2):105. doi: 10.3390/e20020105.
In Bohmian mechanics, particles follow continuous trajectories, so two-time position correlations have been well defined. However, Bohmian mechanics predicts the violation of Bell inequalities. Motivated by this fact, we investigate position measurements in Bohmian mechanics by coupling the particles to macroscopic pointers. This explains the violation of Bell inequalities despite two-time position correlations. We relate this fact to so-called surrealistic trajectories that, in our model, correspond to slowly moving pointers. Next, we emphasize that Bohmian mechanics, which does not distinguish between microscopic and macroscopic systems, implies that the quantum weirdness of quantum physics also shows up at the macro-scale. Finally, we discuss the fact that Bohmian mechanics is attractive to philosophers but not so much to physicists and argue that the Bohmian community is responsible for the latter.
在玻姆力学中，粒子遵循连续轨迹，因此两次位置关联已得到很好的定义。然而，玻姆力学预言了贝尔不等式的违背。受这一事实的启发，我们通过将粒子与宏观指针耦合来研究玻姆力学中的位置测量。这解释了尽管存在两次位置关联，但贝尔不等式仍被违背的现象。我们将这一事实与所谓的超现实轨迹联系起来，在我们的模型中，这些轨迹对应于缓慢移动的指针。接下来，我们强调，玻姆力学并不区分微观和宏观系统，这意味着量子物理学的量子怪异也会在宏观尺度上显现出来。最后，我们讨论了玻姆力学对哲学家有吸引力但对物理学家吸引力不大这一事实，并认为玻姆学派应该对此负责。
