Spin-flip quantum transition driven by the time-oscillating Rashba field

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書誌事項

公開日
2018-01-19
資源種別
journal article
権利情報
  • http://iopscience.iop.org/info/page/text-and-data-mining
  • http://creativecommons.org/licenses/by/3.0/
DOI
  • 10.1088/2399-6528/aaa38e
公開者
IOP Publishing

説明

Focusing on the spin-flip quantum transition, we study the time-dependent phenomena by the oscillating Rashba spin–orbit interaction. An electron is confined by a harmonic potential surrounded by a cylindrical hard-wall in a two-dimensional (2D) quantum dot. The oscillating Rashba external field having a frequency w is applied perpendicular to the 2D plane. The projection and discrete Fourier transform analyses reveal that the interstate transition causes the characteristic spin-flip quantum transition when the Rashba field has a resonant frequency. Particularly in the cylindrical hard-wall confinement, a typical Rabi oscillation results with a spin flipping. The perturbation approach up to the fourth-order terms satisfactorily explains the origin of the oscillating components found in the spin density.

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