Extended Data Fig. 3: Splitting of the topological phase due to the presence of inter-site Coulomb interactions.
From: Engineering topological states in atom-based semiconductor quantum dots
A comparison of the theoretically calculated conductance traces (blue lines) with the experimental data observed (circles) as the inter-site Coulomb interaction strength is varied from, a, no Coulomb interactions, to b, 0.5 × Vi,j, c, Vi,j, and d, 2 × Vi,j. In the case of no Coulomb interactions only a single peak is observed in the theoretical conductance trace, which does not match the roughly 0.2 meV splitting observed in the experimental data. As the Coulomb interaction strength is increased two peaks evolve with the splitting between the peaks increasing, with the roughly 0.2 meV splitting matching the experimental data in c.
