title: Extraordinary electron transmission through a periodic array of quantum dots.
abstract: 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.
authors.affiliation: Department of Medical Physics, Yerevan State Medical University, 2 Koryun Street, Yerevan, 0025, Armenia and Department of Physics, Jackson State University, Jackson, Mississippi 39217 USA.
authors.forename: L S
authors.initials: LS
authors.lastname: Petrosyan
authors.forename: A S
authors.initials: AS
authors.lastname: Kirakosyan
authors.forename: T V
authors.initials: TV
authors.lastname: Shahbazyan
mesh_terms: D000465:Algorithms; D004583:Electrons; D045663:Quantum Dots; D012666:Semiconductors