On depolarisation in 0D systems: Lamb-like level shift

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An extremely quantized 0D system is studied for better understanding of an importance of many-body corrections to an one-electron spectrum. A new approach is proposed to describe the correction appearing as a depolarisation level shift of a (confined) electron moving within an electric field of a (confined) collective mode. For a quantum dot the correction diminishes at the size about 104-105 atoms, depending also on other system parameters. For a closed-shell carbon cluster the effect does not depend on the cluster size owing to stronger quantization and the one-electron estimation does not fit anywhere. For the semiconductor quantum dot system an experimental method to check the depolarisation model is proposed.

Original languageEnglish (US)
Title of host publicationProceedings of the 8th International Symposium Nanostructures
Subtitle of host publicationPhysics and Technology
EditorsZh. alferov, L. Esaki, ZH. Alferov, L. Esaki
Pages432-435
Number of pages4
StatePublished - Dec 1 2000
EventProceedings of the 8th International Symposium Nanostructures: Physics and Technology - St. Petersburg, Russian Federation
Duration: Jun 19 2000Jun 23 2000

Other

OtherProceedings of the 8th International Symposium Nanostructures: Physics and Technology
CountryRussian Federation
CitySt. Petersburg
Period6/19/006/23/00

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Rotkin, V. (2000). On depolarisation in 0D systems: Lamb-like level shift. In Z. alferov, L. Esaki, ZH. Alferov, & L. Esaki (Eds.), Proceedings of the 8th International Symposium Nanostructures: Physics and Technology (pp. 432-435)