Fig. 4: Results of thermal polarization with in- and anti-phase modes.
From: Selectable diffusion direction with topologically protected edge modes
a Eigenfunctions of modes A (light blue) and A\({}^{{\prime} }\) (dark blue) on the sites in the unit cells specified as O2, O1, T1, and T2 in Fig. 2. The inset shows the temperature distribution at t = 40 s when mode A\({}^{{\prime} }\) is excited to the structure in Fig. 3a. b Temperature in regions Xleft (red), Xright (blue), Yabove (magenta), and Ybelow (cyan) at t = 40 s as the function of rT when modes A + B (left) and A\({}^{{\prime} }\)+B (right) are applied to the structure in Fig. 3a. In the calculations for the inset of (a) and (b), we use the same simulation settings as that in Fig. 3 except for the initial temperature determined by the applied edge modes. rT is the ratio of thermal diffusivities D1 and D2 in the topological unit cell.
