Figure 5
From: Thermoelectric properties of topological chains coupled to a quantum dot
Normalized conductances as a function of temperature for a system consisting of two semi-infinite Rice–Mele chains attached to a quantum dot at the topological phase transition of the chains (\(\tilde{V}=1\)). In blue continuous \(\epsilon /V_2=0.1\), and in red dashed \(\epsilon /V_2=5 \times \, 10^{-5}\). In both cases, the low temperature saturation value \(G/G_0=1/2\) gives evidence of fractional charges flowing in the system. The curves for \(G/G_0\) are independent of the coupling to the quantum dot and of the sign of \(\epsilon\), for \(\mu =\epsilon\) and the dot in resonance with the edge mode. Notice that for small values of \(\epsilon /V_2\) as temperatures increases there is a kind of recombination of the fractional charges.
