Collective Transport in Arrays of Quantum Dots
Abstract
(WORDS: QUANTUM DOTS, COLLECTIVE TRANSPORT, PHYSICAL EXAMPLE OF KPZ) Collective charge transport is studied in one- and two-dimensional arrays of small normal-metal dots separated by tunnel barriers. At temperatures well below the charging energy of a dot, disorder leads to a threshold for conduction which grows linearly with the size of the array. For short-ranged interactions, one of the correlation length exponents near threshold is found from a novel argument based on interface growth. The dynamical exponent for the current above threshold is also predicted analytically, and the requirements for its experimental observation are described.
Keywords
Cite
@article{arxiv.cond-mat/9304013,
title = {Collective Transport in Arrays of Quantum Dots},
author = {A. Alan Middleton and Ned S. Wingreen},
journal= {arXiv preprint arXiv:cond-mat/9304013},
year = {2009}
}
Comments
12 pages, 3 postscript files included, REVTEX v2, (also available by anonymous FTP from external.nj.nec.com, in directory /pub/alan/dotarrays [as separate files]) [replacement: FIX OF WRONG VERSION, BAD SHAR] March 17, 1993, NECI