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In this paper we describe the moduli space of kinks in a class of systems of two coupled real scalar fields in $1+1$ Minkowskian space-time. The main feature of the class is the spontaneous breaking of a discrete symmetry of (real) Ginzburg-Landau type that guarantees the existence of kink topological defects.
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Alonso-Izquierdo et al. (2002) studied this question.
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