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- W2080366598 abstract "We study the energy level structure of two-dimensional charged particles in a circular quantum dot in inhomogeneous magnetic fields. In this system, the magnetic field is zero inside the dot and constant outside. Such a device can be fabricated with present-day technology. We present detailed semiclassical studies of such magnetic quantum dot systems and provide a comparison with exact quantum calculations. In the semiclassical approach we apply the Berry-Tabor formula for the density of states and the Borh-Sommerfeld quantization rules. In both cases we found good agreement with the exact spectrum in the weak magnetic field limit. The energy spectrum for a given missing flux quantum is classified in six possible classes of orbits and summarized in a so-called phase diagram. We also investigate the current flow patterns of different quantum states and show a clear correspondence with classical trajectories." @default.
- W2080366598 created "2016-06-24" @default.
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- W2080366598 date "2005-02-28" @default.
- W2080366598 modified "2023-10-16" @default.
- W2080366598 title "Quantum and semiclassical study of magnetic quantum dots" @default.
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- W2080366598 doi "https://doi.org/10.1103/physrevb.71.075331" @default.
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