Coherent revival of tunneling

Liang Yan Hsu, Herschel Albert Rabitz

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

We introduce a tunneling effect by a driving field, referred to as coherent revival of tunneling (CRT), corresponding to complete tunneling (transmission coefficient =1) that is revived from the circumstance of total reflection (transmission coefficient ≈0) through application of an appropriate perpendicular high-frequency ac field. To illustrate CRT, we simulate electron transport through fish-bone-like quantum-dot arrays by using single-particle Green's functions along with Floquet theory, and we explore the corresponding current-field amplitude characteristics as well as current-polarization characteristics. In regard to the two characteristics, we show that CRT exhibits entirely different features than coherent destruction of tunneling and photon-assisted tunneling. We also discuss two practical conditions for experimental realization of CRT.

Original languageEnglish (US)
Article number035410
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume92
Issue number3
DOIs
StatePublished - Jul 8 2015

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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