Coupled lattice chains#
One-dimensional lattices: the exactly-solvable harmonic chain, the Fermi-Pasta-Ulam-Tsingou beta-lattice and its famous non-ergodic recurrence, and the discrete sine-Gordon chain’s topological solitons.
Sine-Gordon solitons: kink propagation and a kink-antikink breather
Sine-Gordon solitons: kink propagation and a kink-antikink breather