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SSH with nanoparticles: (a) 1D SSH model, with alternating nearest-neighbor interactions of magnitude v and w, respectively. (b) Chains of nanoparticles, as dipoles. Interaction strength can be tuned by varying relative nanoparticle positions along the chain. (c) Unlike the atoms of the original SSH model, dipoles have long-range interactions, described by the dyadic Green’s function. (d) Comparison between short-, mid-, and long-range interaction.
