Single-electron spin resonance in a g-factor-controlled semiconductor quantum dot

Takeshi Kutsuwa, Makoto Kuwahara, Keiji Ono, Hideo Kosaka

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We demonstrate that a single electron spin in a quantum dot, of which g-factor is tuned to nearly zero, is coherently manipulated by the local gate operation. A nearly zero electron g-factor is essential for the quantum state transfer from a photon to an electron spin and ideal for long electron spin memory. The g-factor was tuned by replacing the single heterostructure, which forms the conventional quantum dot, into a single quantum well with a proper electron confinement. The obtained electron g-factor was about 0.05, which is consistent with the optically estimated g-factor. We also demonstrate that the Rabi oscillation was maintained for more than 1.5 μs.

本文言語English
ページ(範囲)821-824
ページ数4
ジャーナルPhysica E: Low-Dimensional Systems and Nanostructures
42
4
DOI
出版ステータスPublished - 2010 2月

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学
  • 凝縮系物理学

フィンガープリント

「Single-electron spin resonance in a g-factor-controlled semiconductor quantum dot」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル