arXiv:cond-mat/0501150 Abstract

arXiv:cond-mat/0501150Abstract References Reviews Resources

Imaging a Single-Electron Quantum Dot

Parisa Fallahi, Ania C. Bleszynski, Robert M. Westervelt, Jian Huang, Jamie D. Walls, Eric J. Heller, Micah Hanson, Arthur C. Gossard

Published 2005-01-07Version 1

Images of a single-electron quantum dot were obtained in the Coulomb blockade regime at liquid He temperatures using a cooled scanning probe microscope (SPM). The charged SPM tip shifts the lowest energy level in the dot and creates a ring in the image corresponding to a peak in the Coulomb-blockade conductance. Fits to the lineshape of the ring determine the tip-induced shift of the electron energy state in the dot. SPM manipulation of electrons in quantum dots promises to be useful in understanding, building and manipulating circuits for quantum information processing.

Comments: 14 pages including 3 figures

Categories: cond-mat.mes-hall, cond-mat.mtrl-sci

Keywords: single-electron quantum dot, quantum dots promises, lowest energy level, electron energy state, charged spm tip shifts

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