Phys. Rev. Lett. 72, 3590–3593 (1994)Collective Coulomb blockade in an array of quantum dots: A Mott-Hubbard approachReceived 26 August 1993; published in the issue dated 30 May 1994 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. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.72.3590
DOI:
10.1103/PhysRevLett.72.3590
PACS:
73.20.Dx, 71.27.+a, 73.40.Gk
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