Self-induced oscillation for electron-hole pair confined in quantum dot

Tomoki Tagawa, Atsushi Tsubaki, Masamu Ishizuki, Kyozaburo Takeda

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

Abstract

We study the time-dependent (TD) phenomena of the electron-hole or electron-electron pair confined in the square quantum dot (SQD) system by computationally solving TD Schroedinger equation under the unrestricted Hartree-Fock (UHF) approach. A typical vacillation is found both in the electron and hole when the charged pair is strongly confined in the SQD while the charged particles have initially the same orbital symmetry. The FFT analysis elucidates that the transition matrix element due to the coulomb interaction involves the eigen frequency ω being equal to the excitation energy when the resonative vacillation appears. Thus, Coulomb potential has a potential to cause the self-induced "Rabi" oscillation when the charged-particle pair is confined only in the QD.

Original languageEnglish
Title of host publicationPhysics of Semiconductors - 30th International Conference on the Physics of Semiconductors, ICPS-30
Pages365-366
Number of pages2
DOIs
Publication statusPublished - 2011 Dec 1
Event30th International Conference on the Physics of Semiconductors, ICPS-30 - Seoul, Korea, Republic of
Duration: 2010 Jul 252010 Jul 30

Publication series

NameAIP Conference Proceedings
Volume1399
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference30th International Conference on the Physics of Semiconductors, ICPS-30
CountryKorea, Republic of
CitySeoul
Period10/7/2510/7/30

Keywords

  • Rabi oscillation
  • charged-particle pair
  • quantum dot
  • time-dependent phenomena

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Tagawa, T., Tsubaki, A., Ishizuki, M., & Takeda, K. (2011). Self-induced oscillation for electron-hole pair confined in quantum dot. In Physics of Semiconductors - 30th International Conference on the Physics of Semiconductors, ICPS-30 (pp. 365-366). (AIP Conference Proceedings; Vol. 1399). https://doi.org/10.1063/1.3666405