Coherence and decoherence in tunneling between quantum dots

D. M. Cardamone, C. A. Stafford, B. R. Barrett

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Coupled quantum dots are an example of the ubiquitous quantum double potential well. In a typical transport experiment, each quantum dot is also coupled to a continuum of states. Our approach takes this into account by using a Green's function formalism to solve the full system. The time-dependent solution is then explored in different limiting cases. In general, a combination of coherent and incoherent behavior is observed. In the case that the coupling of each dot to the macroscopic world is equal, however, the time evolution is purely coherent.

Original languageEnglish (US)
Pages (from-to)419-423
Number of pages5
JournalPhysica Status Solidi (B) Basic Research
Volume230
Issue number2
DOIs
StatePublished - Aug 29 2002

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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