2004/07/10 by Lev G. Mourokh, Lev Mourokh, Mourokh, Lev G. +3
Engineering · Physics and Astronomy · #FOS: Physical sciences #Molecular Junctions and Nanostructures #Other Condensed Matter (cond-mat.other) #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.other
paper · pdf · doi:10.48550/arxiv.cond-mat/0407266
arxiv created 2004/07/10 · openalex publication_date 2004/07/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We analyze the electron transmission through a ballistic quantum dot which is connected to two quantum point contacts. We demonstrate that the transmission and reflection of this structure is determined by the transfer time of the quantum-dot region which, in turn, is dependent on the applied electric field. The electric-field dependence of the transmission coefficient exhibits clearly pronounced peaks, and regions with negative differential transmission, and we discuss the conditions that should be satisfied in order to observe these effects in experiment.