Quantum-dot excitation spectrum: Laughlin-like states

N. F. Johnson

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


The excitation spectrum of an interacting electron gas in a quantum dot is discussed in the large-magnetic-field regime using a recently introduced exactly solvable model. The spectrum exhibits complex crossings as a function of the strength of the electron-electron interaction. The corresponding eigenfunctions are generalizations of Laughlin wave functions, but include significant inter-Landau-level mixing. Laughlin quasiparticles represent a poor description of the elementary excitations.

Original languageEnglish (US)
Pages (from-to)2636-2639
Number of pages4
JournalPhysical Review B
Issue number4
StatePublished - 1992

ASJC Scopus subject areas

  • Condensed Matter Physics


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