2006/08/25 by A. S. Moskalenko, Alex Matos-Abiague, A. Matos-Abiague +2 · 2 citations
Physics and Astronomy · #Laser-Matter Interactions and Applications #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.74.161303
published as Phys. Rev. B 74, 161303 (2006) · 4 pages, 2 figures
arxiv created 2006/08/25 · openalex publication_date 2006/10/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Using a microscopic theory based on the density-matrix formalism we investigate quantum revivals and collapses of the charge polarization and charge current dynamics in mesoscopic rings driven by short asymmetric electromagnetic pulses. The collapsed state is utilized for subpicosecond switching of the current and associated magnetization, enabling thus the generation of pulsed magnetic fields with a tunable time structure and shape asymmetry which provides an additional tool to study ultrafast spin dynamics and ratchet-based effects.