Math @ Duke

Publications [#342144] of Alex Young
Papers Published
 Lega, J; Sethuraman, S; Young, AL, On Collisions Times of ‘SelfSorting’ Interacting Particles in OneDimension with Random Initial Positions and Velocities,
Journal of Statistical Physics, vol. 170 no. 6
(March, 2018),
pp. 10881122, Springer Nature [doi]
(last updated on 2019/08/11)
Abstract: © 2018, Springer Science+Business Media, LLC, part of Springer Nature. We investigate a onedimensional system of N particles, initially distributed with random positions and velocities, interacting through binary collisions. The collision rule is such that there is a time after which the N particles do not interact and become sorted according to their velocities. When the collisions are elastic, we derive asymptotic distributions for the final collision time of a single particle and the final collision time of the system as the number of particles approaches infinity, under different assumptions for the initial distributions of the particles’ positions and velocities. For comparison, a numerical investigation is carried out to determine how a nonelastic collision rule, which conserves neither momentum nor energy, affects the median collision time of a particle and the median final collision time of the system.


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