Electron transport of a driven three-level system in an asymmetric double quantum dot irradiated by an external field

Y. Y. Liao, D. S. Chuu, Y. N. Chen

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Electron tunneling through a three-level system in an asymmetric double quantum dot irradiated by an external field is investigated. For a resonant external field, two symmetric peaks occur in the current spectrum. If the field frequency is detuned, unequal contributions from two channels lead to two asymmetric peaks with population inversion, which can be observed with increasing Rabi frequency. On the other hand, as the ground states in two dots are equal, a suppression of current occurs around the resonant frequency. In contrast, an enhanced behavior is found for the case of unequal ground states.

Original languageEnglish
Article number125325
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number12
DOIs
Publication statusPublished - 2007 Mar 27

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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