Tuning of coupling modes in laterally parallel double open quantum dots

2005/07/29 by Chi-Shung Tang, Chi‐Shung Tang, Wing Wa Yu +2 · 1 citation
Engineering · Physics and Astronomy · #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.72.195331

published as Phys. Rev. B 72, 195331 (2005) (12 pages) · RevTeX, 13 pages with 18 included postscript figures, high resolution version is available at http://hartree.raunvis.hi.is/~vidar/Rann/CSTVG_DOQD_05.pdf

arxiv created 2005/07/29 · openalex publication_date 2005/11/21 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We consider electronic transport through laterally parallel double open quantum dots embedded in a quantum wire in a perpendicular magnetic field. The coupling modes of the dots are tunable by adjusting the strength of a central barrier and the applied magnetic field. Probability density and electron current density are calculated to demonstrate transport effects including magnetic blocking, magnetic turbulence, and a holelike quasibound state feature. Fano to dip line-shape crossover in the conductance is found by varying the magnetic field.

Citations

• Transport spectroscopy in a time-modulated open quantum dot
• Multi-mode transport through a quantum nanowire with two embedded dots
• Spintronics: Fundamentals and applications
• Photovoltaic and rectification currents in quantum dots
• Double occupancy errors in quantum computing operations: Corrections to adiabaticity
• Effects of Configuration Interaction on Intensities and Phase Shifts

Cited by

• Coherent switching by detuning a side-coupled quantum-dot system