Extraordinary electron transmission through a periodic array of quantum   dots
  We study electron transmission through a periodic array of quantum dots (QD) sandwiched between doped semiconductor leads. When the Fermi wavelength of tunneling electron exceeds the array lattice constant, the off-resonant per QD conductance is enhanced by several orders of magnitude relative to the single-QD conductance. The physical mechanism of the enhancement is delocalization of a small fraction of system eigenstates caused by coherent coupling of QDs via the electron continuum in the leads. 
L. S. Petrosyan, A. S. Kirakosyan, T. V. Shahbazyan
cond-mat.mes-hall cond-mat.mtrl-sci