Abstract
Semiconductor quantum dots are fascinating objects, since, in some respect, they can be regarded as artificial atoms [1]. Figure 5.1 shows a very schematic comparison of a real three–dimensional atom and a disc–shaped quantum dot. The structure of real atoms is three–dimensional, while most of the artificial quantum dots can be regarded as large Q2D atoms, since the lateral dimensions are in most cases much larger than the vertical extension. Of course, a crucial difference between the two systems is the shape of the confining potentials, which, for real atoms is essentially the Coulomb potential of the nucleus, and, for quantum–dot atoms in some approximation a two–dimensional parabolic potential.
Keywords
- Collective Excitation
- American Physical Society
- Parabolic Potential
- Quadrupole Excitation
- Radial Quantum Number
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Schüller, C. (2006). Quantum Dots: Spectroscopy of Artificial Atoms. In: Inelastic Light Scattering of Semiconductor Nanostructures. Springer Tracts in Modern Physics, vol 219. Springer, Berlin, Heidelberg . https://doi.org/10.1007/3-540-36526-5_5
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