Collective Coulomb blockade in an array of quantum dots: A Mott-Hubbard approach

C. A. Stafford; S. Das Sarma

doi:10.1103/PhysRevLett.72.3590

Collective Coulomb blockade in an array of quantum dots: A Mott-Hubbard approach

C. A. Stafford, S. Das Sarma

Research output: Contribution to journal › Article › peer-review

197 Scopus citations

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.

Original language	English (US)
Pages (from-to)	3590-3593
Number of pages	4
Journal	Physical review letters
Volume	72
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.72.3590
State	Published - Jan 1 1994
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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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.",

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AB - 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.

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Collective Coulomb blockade in an array of quantum dots: A Mott-Hubbard approach

Abstract

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