Exact dynamical response of an N-electron quantum dotsubject to a time-dependent potential

Simon C. Benjamin, Neil F. Johnson

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

We calculate analytically the exact dynamical response of a droplet of N interacting electrons in a quantum dot with an arbitrarily time-dependent parabolic confinement potential ω(t) and a perpendicular magnetic field. We find that, for certain frequency ranges, a sinusoidal perturbation acts like an attractive effective interaction between electrons. In the absence of a time-averaged confinement potential, the N electrons can bind together to form a stable, free-standing droplet.

Original languageEnglish (US)
Pages (from-to)R4903-R4906
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume55
Issue number8
DOIs
StatePublished - Jan 1 1997

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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