中文摘要：

我们与一条完美地思考的飞机边界在一空间时间与正常古典经常的速度学习一个控告的测试粒子的随机的运动并且计算测试粒子的速度和位置分散。当当测试粒子古典主义地移动离开边界时，那些作为与古典静态的盒子相比在平行方向被加强时，我们的结果证明在正常方向的分散被削弱。然而，如果古典运动颠倒它的方向，当那些在平行方向变得削弱时，那么，在正常方向的分散被增强。

英文摘要：

We study the random motion of a charged test particle with a normal classical constant velocity in a spacetime with a perfectly reflecting plane boundary and calculate both the velocity and position dispersions of the test particle. Our results show that the dispersions in the normal direction are weakened while those in the parallel directions are strengthened as compared to the classical static case when the test particle classically moves away from the boundary. However, if the classical motion reverses its direction, then the dispersions in the normal direction are reinforced while those in the parallel directions get weakened.