2015/12/01 by Nzar Rauf Abdullah, Chi-Shung Tang, Andrei Manolescu +1 · 1 citation
Chemistry · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Charge (physics) #Coupling (piping) #Cyclotron #Electron #Magnetic field #Perpendicular #Photon #Quantum and electron transport phenomena #Quantum dot #Quantum point contact #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall
paper · pdf · doi:10.1088/0953-8984/28/37/375301
published as The Journal of Physics: Condensed Matter 28, 375301 (2016) · 8 pages, 8 figures
arxiv created 2015/12/01 · openalex created_date 2016/06/24 · openalex publication_date 2016/07/15 · arxiv updated 2016/08/03 · openalex updated_date 2026/08/05
We investigate theoretically the balance of the static magnetic and the dynamical photon forces in the electron transport through a quantum dot in a photon cavity with a single photon mode. The quantum dot system is connected to external leads and the total system is exposed to a static perpendicular magnetic field. We explore the transport characteristics through the system by tuning the ratio, [Formula: see text], between the photon energy, [Formula: see text], and the cyclotron energy, [Formula: see text]. Enhancement in the electron transport with increasing electron-photon coupling is observed when [Formula: see text]. In this case the photon field dominates and stretches the electron charge distribution in the quantum dot, extending it towards the contact area for the leads. Suppression in the electron transport is found when [Formula: see text], as the external magnetic field causes circular confinement of the charge density around the dot.