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Magnetic monopoles and kinks are topological excitations extensivelyinvestigated in quantum spin systems, but usually they are studied in differentsetups. We explore the conditions for the coexistence and the interactioneffects of these quasiparticles in the pseudospin chain of the atomic dipolarsuperlattice gas. In this chain, the magnetic kink is the intrinsicquasiparticle, and the particle/hole defect takes over the role of thenorth/south magnetic monopole, exerting monopolar magnetic fields toneighboring spins. A confinement effect between the monopole and kink isrevealed, which renormalizes the dispersion of the kink. The correspondingdynamical deconfinement process is observed and arises due to the kink-antikinkannihilation. The rich interaction effects of the two quasiparticles couldstimulate corresponding investigations in bulk spin systems.

Interaction effects of pseudospin-based magnetic monopoles and kinks in a doped dipolar superlattice gas