Half-integral spin-singlet quantum Hall effect

L. Belkhir, X. G. Wu, J. K. Jain

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


We provide numerical evidence that the ground state of a short-range-interaction model at =1/2 is incompressible and spin singlet for a wide range of repulsive interactions. Furthermore it is accurately described by a trial wave function studied earlier. For the Coulomb interaction we find that this wave function provides a good description of the lowest-lying spin-singlet state, and propose that fractional quantum Hall effect would occur at =1/2 if this state became the global ground state. Some conclusions of an earlier paper are invalidated by the present numerical study of a larger system; these will be indicated.

Original languageEnglish (US)
Pages (from-to)15245-15249
Number of pages5
JournalPhysical Review B
Issue number20
StatePublished - 1993

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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