Exact analytical expressions for mean hopping, disc-collision, and wall-collision times for two hard discs in a box, derived via a billiard model and Chernov's return-time formula, and verified numerically.
This results in the following expression: Ahop = x1,x2=a y1,y2=b∫∫∫∫ x1,x2=−a y1,y2=−b dx 1dx 2dy 1dy 2 1{(x1−x2)2+(y1−y2)2≥(2r)2} δ (y1− y2√ 2 )
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Exact hopping and collision times for two hard discs in a box
Exact analytical expressions for mean hopping, disc-collision, and wall-collision times for two hard discs in a box, derived via a billiard model and Chernov's return-time formula, and verified numerically.