Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-04-22
JHEP 0206 (2002) 055
Physics
High Energy Physics
High Energy Physics - Theory
v.2: two references added, minor corrections
Scientific paper
10.1088/1126-6708/2002/06/055
In this paper we study the noncommutative extension of a modified U(n) sigma model in 2+1 dimensions. Using the method of dressing transformations, an iterative approach for the construction of solutions from a given seed solution, we demonstrate the construction of multi-soliton and soliton-antisoliton configurations for general n. As illustrative examples we discuss U(3) solitons and consider the head-on collision of a U(2) soliton and an antisoliton explicitly, which will result in a 90^{\text{o}} angle scattering. Further we discuss the head-on collision of one U(2) soliton with two antisolitons. This results in a 60^{\text{o}} angle scattering.
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