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Scattering of a classical rotating object by a screen with a slit

机译:用狭缝的屏幕散射古典旋转物体

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The scattering of a rod-like rotating object by a single slit on a screen is followed according to the laws of classical mechanics. We assume a free planar motion and a uniform rotation, except for the moments of collisions, causing discontinuous jumps in the velocity and the angular velocity of the object. The collisions, which are assumed to be ideally elastic, result in certain constrains and we show that the motion in the six-dimensional phase space of the problem can be mapped onto a 3D billiard. We simulate numerically the dynamics of the problem and find that the collision number shows a sensitive dependence on the initial conditions for certain regions of the phase space. This result forecasts the necessity of further caution in the quantum version of this problem, where entanglement of rotational and translational degrees of freedom should play a role.
机译:根据经典力学的规律,沿着屏幕上的单个狭缝散射杆状旋转物体。 除了碰撞的时刻,我们假设自由平面运动和均匀的旋转,导致对象的速度和角速度的不连续跳跃。 假设是理想的弹性的碰撞导致某些约束,并且我们表明问题的六维相空间中的运动可以映射到3D台球上。 我们在数值上模拟问题的动态,并发现碰撞号显示对相空间某些区域的初始条件的敏感依赖性。 该结果预测了在这个问题的量子版本中进一步谨慎的必要性,其中旋转和翻译自由度的纠缠应该发挥作用。

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