Theoretical study on electron dynamics for a two-dimensional electron gas coupled with a quantum dot

Masakazu Muraguchi, Yukihiro Takada, Shintaro Nomura, Kenji Shiraishi

研究成果: Conference contribution

抄録

We studied the time evolutions of the electronic states on a quantum wire (QW) and a two-dimensional electron gas (2DEG), which are suddenly coupled with a discrete level. We employed the tight-binding model to represent these systems, and calculate the time evolutions of the wave functions by solving the time-dependent (TD) Schrödinger equation numerically. The resulting time evolutions indicate that the characteristics of the electron density distributions on both the QW and the 2DEG sensitively depend on the energy level of the discrete level. We found that the modulation of the electron density distribution is enhanced in the QW-QD coupled system.

本文言語English
ホスト出版物のタイトルPhysics of Semiconductors - 29th International Conference, ICPS 29
ページ217-218
ページ数2
DOI
出版ステータスPublished - 2009
外部発表はい
イベント29th International Conference on Physics of Semiconductors, ICPS 29 - Rio de Janeiro, Brazil
継続期間: 2008 7月 272008 8月 1

出版物シリーズ

名前AIP Conference Proceedings
1199
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Other

Other29th International Conference on Physics of Semiconductors, ICPS 29
国/地域Brazil
CityRio de Janeiro
Period08/7/2708/8/1

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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