Transport through the intertube link between two parallel carbon   nanotubes
  Quantum transport through the junction between two metallic carbon nanotubes connected by intertube links has been studied within the TB method and Landauer formula. It is found that the conductance oscillates with both of the coupling strength and length. The corresponding local density of states (LDOS) is clearly shown and can be used to explain the reason why there are such kinds of oscillations of the conductances, which should be noted in the design of nanotube-based devices. 
Jia-Lin Zhu, Fu-fang Xu, and Yu-feng Jia