Pattern formation of indirect excitons in coupled quantum wells

C. S. Liu, H. G. Luo, W. C. Wu

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Using a nonlinear Schrödinger equation including short-range two-body attraction and three-body repulsion, we investigate the spatial distribution of indirect excitons in semiconductor coupled quantum wells. The results obtained can explain the experimental phenomenon that the annular exciton cloud first contracts then expands when the number of confined excitons is increased in the impurity potential well, as observed by Lai et al (2004 Science 303 503). In particular, the model reconciles the patterns of exciton rings reported by Butov et al (2002 Nature 418 751). At higher densities, the model predicts much richer patterns, which could be tested by future experiments.

Original languageEnglish
Article number012
Pages (from-to)9659-9668
Number of pages10
JournalJournal of Physics Condensed Matter
Volume18
Issue number42
DOIs
Publication statusPublished - 2006 Oct 25

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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