Exciton Storage in a Nanoscale Aharonov-Bohm Ring with Electric Field Tuning

2008/09/23 by Andrea M. Fischer, Vivaldo L. Campo Jr., V. L. Campo +4 · 2 citations
Physics and Astronomy · #Condensed matter physics #Electric field #Electron #Exciton #Field (mathematics) #Magnetic field #Nanoscopic scale #Perpendicular #Physics #Plane (geometry) #Quantum and electron transport phenomena #Quantum mechanics #Ring (chemistry) #Semiconductor Quantum Structures and Devices #Simple (philosophy) #Strong Light-Matter Interactions #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevlett.102.096405

published as Phys. Rev. Lett. 102, 096405 (2009) · 5 pages, 5 figures

arxiv created 2008/09/23 · openalex publication_date 2009/03/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study analytically the optical properties of a simple model for an electron-hole pair on a ring subjected to perpendicular magnetic flux and in-plane electric field. We show how to tune this excitonic system from optically active to optically dark as a function of these external fields. Our results offer a simple mechanism for exciton storage and readout.

Citations

• Counterflow Measurements in Strongly Correlated GaAs Hole Bilayers: Evidence for Electron-Hole Pairing
• Spectroscopy of Nanoscopic Semiconductor Rings
• Bose–Einstein condensation of exciton polaritons

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