One-Soliton Solutions
Obviously, the sine-Gordon equation has a trivial solution
. Substituting the trivial solution into the system "Backl_Trans", one obtains the one-soliton solutions Kink and Antikink.
Kink is the transition from one stationary solution,
, to another,
.
Antikink, in contrast to the kink, is the transition from the solution
to
.