Influence of Coulomb Blockade on Wave Packet Dynamics in Nanoscale Structures

• Taro Shiokawa

• Genki Fujita

• Yukihiro Takada

• Satoru Konabe

• Masakazu Muraguchi

• Takahiro Yamamoto

• Tetsuo Endoh

• Yasuhiro Hatsugai

• Kenji Shiraishi

Abstract

Influence of Coulomb blockade on electron scattering by a quantum dot has been theoretically investigated using a multielectron wave packet simulation technique based on the time-dependent Hartree–Fock approximation. In our simulation, the bound states of electrons in the dot are self-consistently determined. We confirmed that Koopman's theorem keeps its validity only for weak Coulomb interactions. Moreover, we show that the maximum number of electrons trapped in the dot does depend on the strength of Coulomb interactions. Consequently, the transmission and reflection probabilities of an incident wave packet toward the dot are strongly influenced by the number of trapped electrons in the dot.

Journal

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 52 (4S), 04CJ06-, 2013-03-21

  IOP Publishing

Keywords

• General Physics and Astronomy
• General Engineering

Details

• CRID: 1360003449886662400
• NII Article ID: 210000142088
• DOI: 10.7567/jjap.52.04cj06
• ISSN: 13474065
• ISSN: 00214922
• ISSN: http://id.crossref.org/issn/13474065
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.52.04CJ06
• Web Site: https://iopscience.iop.org/article/10.7567/JJAP.52.04CJ06/pdf
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