Strong Tunneling in the Single-Electron Box

1998/07/07 by Jürgen König, Herbert Schoeller · 2 citations
Engineering · Physics and Astronomy · #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #Semiconductor materials and devices #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevlett.81.3511

published as Phys. Rev. Lett. 81, 3511 (1998) · 5 pages, 5 figures

arxiv created 1998/07/07 · openalex publication_date 1998/10/19 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We study strong tunneling (i.e., transmission h/e²R_T\ensuremath≫1) in the single-electron box with many transverse modes at zero temperature. We develop a new renormalization group method which includes all charge states and requires no initial or final energy cutoff. We determine the ground-state energy, the average charge, and the renormalized charging energy. The covered range for the coupling constant and the gate voltage is much increased in comparison to recent perturbative approaches, ``poor-man'' scaling methods, and quantum Monte Carlo simulations. We reach the regime where Coulomb blockade becomes practically unobservable.

Citations

• Coulomb charging energy for arbitrary tunneling strength

Cited by

• Noise of a single-electron transistor in the regime of large quantum fluctuations of island charge out of equilibrium
• Nonequilibrium theory of Coulomb blockade in open quantum dots