Basically the electron transport through nano-wires or quantum dots doesn't
satisfy the quasi-free semi-classical Drude electron transport model, the
phase coherent length of the electrons is very large compared to the physical
dimension of the system and the impurities or contacts scatter strongly with
the individual electrons. Therefore, the physics of the quantum transport
becomes quite similar to the Kondo problem where the resistance at low
temperature shows the divergence behavior as a*ln(
