Title: Composite-fermion excitations and the electronic spectra of fractional quantum Hall systems
Abstract: In the composite-fermion (CF) mean-field theory of a two-dimensional electron system, an electron Landau level whose filling factor is an odd denominator fraction can be transformed into an integral number of filled CF Landau levels. This CF state corresponds to the ground state of a Laughlin incompressible liquid, with an energy gap equal to the ``effective'' CF cyclotron energy. Excited states are described by ${\mathit{n}}_{\mathrm{QE}}$ and ${\mathit{n}}_{\mathrm{QH}}$, the number of quasielectron and quasihole CF excitations. The energies of individual quasielectrons or quasiholes and their ``Fermi liquid'' interactions can be investigated by comparing the CF picture with exact numerical results for a small number of electrons on a spherical surface. \textcopyright{} 1996 The American Physical Society.
Publication Year: 1996
Publication Date: 1996-04-15
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
Access and Citation
Cited By Count: 7
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot