Ground-state properties of bilayer ν = 2 quantum Hall states

Yuichi Shimoda, Tatsuya Nakajima, Anju Sawada

Research output: Contribution to journalArticle

Abstract

We construct a Hartree-Fock-Bogoliubov (HFB) Hamiltonian Haldane-sphere and study excitation spectra and ground-state properties in bilayer ν = 2 QH systems. It is found that the HFB approximation can systematically give SU(2) symmetrical excitation spectra spectra well agree with those from exact diagonalization calculations in large tunneling-energy region. In this region, has been considered to be a pseudospin-squeezed ground state is favored theory,

Original languageEnglish
Pages (from-to)3713-3716
Number of pages4
JournalInternational Journal of Modern Physics B
Volume18
Issue number27-29
DOIs
Publication statusPublished - 2004 Nov 30

Keywords

  • Hartree-Fock- Bogoliubov theory
  • Quantum Hall effect
  • Two-dimensional electron systems

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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