1) Solitons are classical solutions to some field
equations.
2)They are localised packets of
energy that travel undistorted in shape with
some uniform velocity.
3)Solitons resemble particles and this is our
reason to be interested in them.
4) Solitons (as opposed to solitary waves) regain
their shape after scattering through each
other.
5) A breather is formed from a soliton and an
antisoliton oscillating around each other.