Fig. 5: Immunity to defects.
From: Selectable diffusion direction with topologically protected edge modes
a Time dependency of the relative temperature \({R}_{n}\left(t\right)\) on the six sites in the topological unit cell of (mx, my) = (7, 1) at mode A. The inset shows the temperatures in time on each site. b Time dependency of the temperatures in regions Xleft (circles) and Xright (crosses). Red and black symbols show the results with and without the defects, respectively. c Schematic of the unit cell including the defects. Sites 2 and 4 lack beams. We use the same simulation settings as that in Fig. 3 except for the defects in (c). d Temporal evolutions of normalized temperatures for mode A (blue) and the bulk mode (red). In this case, T0 is the room temperature (=293.15 K). The crosses and circles show the time-dependent temperatures \({T}_{{{{{{{{\rm{T}}}}}}}},\left[5,1,4\right]}\) and \({T}_{{{{{{{{\rm{T}}}}}}}},\left[9,1,4\right]}\). The inset shows the band diagram of the supercell. The magenta and green arrows, respectively, denote mode A and the excited bulk mode.
