Collective Coulomb Blockade in an Array of Quantum Dots: A Mott-Hubbard Approach

Abstract

We investigate the electron addition spectrum in a class of Hubbard-like models which describe arrays of coupled quantum dots. Interdot tunneling leads to a sequence of two phase transitions separating a region of collective Coulomb blockade from a region where the Coulomb blockade of individual dots is maintained and a region where the Coulomb blockade is destroyed altogether. Observable experimental consequences of our theory are discussed.

12 pages, REVTEX 3.0, 3 figures included as postscript files

References in corpus (2)

• Collective Transport in Arrays of Quantum Dots
• Scaling theory of the Mott-Hubbard metal-insulator transition in one dimension

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