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 publicationAIP Conference Proceedings
    Pages365-366
    Number of pages2
    Volume1399
    DOIs
    Publication statusPublished - 2011
    Event30th International Conference on the Physics of Semiconductors, ICPS-30 - Seoul
    Duration: 2010 Jul 252010 Jul 30

    Other

    Other30th International Conference on the Physics of Semiconductors, ICPS-30
    CitySeoul
    Period10/7/2510/7/30

    Fingerprint

    vacillation
    quantum dots
    oscillations
    charged particles
    Schroedinger equation
    electrons
    fast Fourier transformations
    Coulomb potential
    orbitals
    causes
    symmetry
    excitation
    interactions
    energy

    Keywords

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

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

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

    Self-induced oscillation for electron-hole pair confined in quantum dot. / Tagawa, Tomoki; Tsubaki, Atsushi; Ishizuki, Masamu; Takeda, Kyozaburo.

    AIP Conference Proceedings. Vol. 1399 2011. p. 365-366.

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

    Tagawa, T, Tsubaki, A, Ishizuki, M & Takeda, K 2011, Self-induced oscillation for electron-hole pair confined in quantum dot. in AIP Conference Proceedings. vol. 1399, pp. 365-366, 30th International Conference on the Physics of Semiconductors, ICPS-30, Seoul, 10/7/25. https://doi.org/10.1063/1.3666405
    Tagawa T, Tsubaki A, Ishizuki M, Takeda K. Self-induced oscillation for electron-hole pair confined in quantum dot. In AIP Conference Proceedings. Vol. 1399. 2011. p. 365-366 https://doi.org/10.1063/1.3666405
    Tagawa, Tomoki ; Tsubaki, Atsushi ; Ishizuki, Masamu ; Takeda, Kyozaburo. / Self-induced oscillation for electron-hole pair confined in quantum dot. AIP Conference Proceedings. Vol. 1399 2011. pp. 365-366
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