Discreteness effects on soliton dynamics: a simple experiment
Claude Laroche, Thierry Dauxois, Michel Peyrard
Abstract
We present a simple laboratory experiment to illustrate some aspects of the soliton theory in discrete lattices with a system that models the dynamics of dislocations in a crystal or the properties of adsorbed atomic layers. The apparatus not only shows the role of the Peierls-Nabarro potential but also illustrates the hierarchy of depinning transitions and the importance of the collective motion in mass transport.
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