Kondo screening cloud effects in mesoscopic devices

2003/05/14 by Pascal Simon, Ian Affleck · 3 citations
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.68.115304

19 pages, 9 figures

arxiv created 2003/05/14 · openalex publication_date 2003/09/11 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study how finite-size effects may appear when a quantum dot in the Kondo Coulomb blockade regime is embedded into a mesoscopic device with finite wires. These finite-size effects appear when the size of the mesoscopic device containing the quantum dot is of the order of the size of a Kondo cloud and affect all thermodynamic and transport properties of the Kondo quantum dot. We also generalize our results to the experimentally relevant case where the wires contain several transverse modes/channels. Our results are based on perturbation theory, Fermi liquid theory, and slave boson mean-field theory.

Citations

• Phase Evolution in a Kondo-Correlated System
• Spectral densities of Kondo impurities in nanoscopic systems
• Kondo impurities in nanoscopic systems: Confinement-induced regimes

Cited by

• Transport properties of multiple quantum dots arranged in parallel: results from the Bethe ansatz
• Method to study highly correlated nanostructures: The logarithmic-discretization embedded-cluster approximation
• Observation of the Fano-Kondo Antiresonance in a Quantum Wire with a Side-Coupled Quantum Dot