Transition Probability of Particles between Two Fixed Positions in Horizontally Rotating Cylinder and Forbidden Region Therein

Abstract

The transitional probability of particles between two fixed positions was observed in a horizontally rotating cylinder. Orbits of the revolving particles are scarcely disturbed with a stationary rotation of cylinder, whereas cascading paths on the surface region of particle bed are accompanied with probabilities.
A special limited zone to particle motion is found, which is named the forbidden region, and its cause is discussed. Calculations of the extent of the region agreed with observations.