Transport through Quantum Dots in Mesoscopic Circuits

2002/12/05 by Pablo S. Cornaglia, P. S. Cornaglia, C. A. Balseiro · 2 citations
Engineering · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevlett.90.216801

published as Phys. Rev. Lett. 90, 216801 (2003) · 4 pages, 5 figures

arxiv created 2002/12/05 · openalex publication_date 2003/05/30 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study the transport through a quantum dot, in the Kondo Coulomb blockade valley, embedded in a mesoscopic device with finite wires. The quantization of states in the circuit that hosts the quantum dot gives rise to finite size effects. These effects make the conductance sensitive to the ratio of the Kondo screening length to the wires length and provide a way of measuring the Kondo cloud. We present results obtained with the numerical renormalization group for a wide range of physically accessible parameters.

Citations

• The renormalization group: Critical phenomena and the Kondo problem
• Landauer formula for the current through an interacting electron region

Cited by

• Spectroscopy of the Kondo Problem in a Box
• Fermi-liquid theory for the persistent current past a side-coupled quantum dot

Related

• Transport in a mesoscopic ring with a quantum dot: from the Coulomb\n blockade regime to the Kondo effect
• Kondo Screening Cloud and Charge Quantization in Mesoscopic Devices
• Coulomb blockade and Kondo effect in quantum dots
• Kondo Effect in the Transport Through a Quantum Dot: Extended Noncrossing Approximation Approach
• Kondo cloud conductance in cavity-coupled quantum dots with asymmetric barriers