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Shock-Like Dynamics of Inelastic Gases
E. Ben-Naim, S. Y. Chen, G. D. Doolen +1
We provide a simple physical picture which suggests that the asymptotic dynamics of inelastic gases in one dimension is independent of the degree of inelasticity. Statistical chara…
Capture of the Lamb: Diffusing Predators Seeking a Diffusing Prey
S. Redner, P. L. Krapivsky
We study the capture of a diffusing "lamb" by diffusing "lions" in one dimension. The capture dynamics is exactly soluble by probabilistic techniques when the number of lions is ve…
Coarsening in a Driven Ising Chain with Conserved Dynamics
V. Spirin, P. L. Krapivsky, S. Redner
We study the low-temperature coarsening of an Ising chain subject to spin-exchange dynamics and a small driving force. This dynamical system reduces to a domain diffusion process,…
Does Good Mutation Help You Live Longer?
W. Hwang, P. L. Krapivsky, S. Redner
We study the dynamics of an age-structured population in which the life expectancy of an offspring may be mutated with respect to that of its parent. When advantageous mutation is…