Decoherence in Nearly-Isolated Quantum Dots
Mesoscale and Nanoscale Physics
2012-11-19 v2 Statistical Mechanics
Abstract
Decoherence in nearly-isolated GaAs quantum dots is investigated using the change in average Coulomb blockade peak height upon breaking time-reversal symmetry. The normalized change in average peak height approaches the predicted universal value of 1/4 at temperatures well below the single-particle level spacing, but is greatly suppressed for temperature greater than the level spacing, suggesting that inelastic scattering or other dephasing mechanisms dominate in this regime.
Cite
@article{arxiv.cond-mat/0008052,
title = {Decoherence in Nearly-Isolated Quantum Dots},
author = {J. A. Folk and C. M. Marcus and J. S. Harris},
journal= {arXiv preprint arXiv:cond-mat/0008052},
year = {2012}
}
Comments
Significant revisions to include comparison to theory. Related papers available at http://marcuslab.harvard.edu