Strong Charge Fluctuations in the Single-Electron Box: A Quantum Monte Carlo Analysis
Mesoscale and Nanoscale Physics
2009-10-31 v1
Abstract
We study strong electron tunneling in the single-electron box, a small metallic island coupled to an electrode by a tunnel junction, by means of quantum Monte Carlo simulations. We obtain results, at arbitrary tunneling strength, for the free energy of this system and the average charge on the island as a function of an external bias voltage. In much of the parameter range an extrapolation to the ground state is possible. Our results for the effective charging energy for strong tunneling are compared to earlier -- in part controversial -- theoretical predictions and Monte Carlo simulations.
Keywords
Cite
@article{arxiv.cond-mat/9807112,
title = {Strong Charge Fluctuations in the Single-Electron Box: A Quantum Monte Carlo Analysis},
author = {Carlos P. Herrero and Gerd Schon and Andrei D. Zaikin},
journal= {arXiv preprint arXiv:cond-mat/9807112},
year = {2009}
}