2003/12/31 by A. C. Johnson, C. M. Marcus, M. Hanson +2 · 1 citation
Engineering · Physics and Astronomy · #Atomic physics #Condensed matter physics #Conductance #Coulomb #Coulomb blockade #Electron #Fano plane #Fano resonance #Maxima and minima #Molecular Junctions and Nanostructures #Physics #Plasmon #Quantum and electron transport phenomena #Quantum dot #Quantum mechanics #Quantum tunnelling #Resonance (particle physics) #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.93.106803
published as Phys. Rev. Lett. 93, 106803 (2004). · related papers available at http://marcuslab.harvard.edu
arxiv created 2004/02/07 · openalex publication_date 2004/09/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate a tunable Fano interferometer consisting of a quantum dot coupled via tunneling to a one-dimensional channel. In addition to Fano resonance, the channel shows strong Coulomb response to the dot, with a single electron modulating channel conductance by factors up to 100. Where these effects coexist, line shapes with up to four extrema are found. A model of Coulomb-modified Fano resonance is developed and gives excellent agreement with experiment.