This work [1] investigates interference effects in finite sections of 1D moiré crystals using the Landauer-Büttiker formalism within the tight-binding approximation. We explain interlayer transport in double-wall carbon nanotubes and demonstrate that wave function interference is visible at the mesoscale: in the strong coupling regime, as a periodic modulation of quantum conductance and emergent localized states; in the localized-insulating regime, as a suppression of interlayer transport, and oscillations of the density of states. The interlayer transmission between strongly coupled metallic nanotubes is limited to either 1G0 or 2G0. Our results could be exploited to design quantum electronic devices, e.g. nanoelectronic switches based on chiral nanotubes. Most importantly, we clarify the origin of the so-far unexplained 1G0 quantum conductance measured in multi-wall carbon nanotubes [2, 3].

[1] N. Wittemeier et al. Carbon 186, 416 (2022)

[2] S. Frank et al. Science 280, 1744 (1998)

[3] W. A. de Heer & C. Berger, Phys. Rev. Lett. 93, 259701 (2004)