Zero Frequency Current Noise for the Double Tunnel Junction Coulomb Blockade
Condensed Matter
2009-10-22 v1
Abstract
We compute the zero frequency current noise numerically and in several limits analytically for the coulomb blockade problem consisting of two tunnel junctions connected in series. At low temperatures over a wide range of voltages, capacitances, and resistances it is shown that the noise measures the variance in the number of electrons in the region between the two tunnel junctions. The average current, on the other hand, only measures the mean number of electrons. Thus, the noise provides additional information about transport in these devices which is not available from measuring the current alone.
Keywords
Cite
@article{arxiv.cond-mat/9207024,
title = {Zero Frequency Current Noise for the Double Tunnel Junction Coulomb Blockade},
author = {Selman Hershfield and John H. Davies and Per Hyldgaard and Christopher J. Stanton and John W. Wilkins},
journal= {arXiv preprint arXiv:cond-mat/9207024},
year = {2009}
}
Comments
33 pages, 10 figures