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Localized supersonic long-living nonlinear modes excited in triangular lattices of
point particles interacting via potential Morse bonds are studied in a frame of a model with
appropriately chosen bonds to rule out redundancy bonds. Numerical simulations on a base of
Newtonian equations are performed to define configurations (coordinates and velocities of all
particles) of steady-state (meta-stable) modes and their characteristics including in particular
excitations being lump soliton-like.
Keywords: 2D Morse lattice; solitons in adjacent rows; meta-stable states; track length; life time. |
full paper (pdf, 1312 Kb)