Model for a quantum hall effect without landau levels: Condensed-matter realization of the "parity anomaly"

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Abstract

A two-dimensional condensed-matter lattice model is presented which exhibits a nonzero quantization of the Hall conductance xy in the absence of an external magnetic field. Massless fermions without spectral doubling occur at critical values of the model parameters, and exhibit the so-called "parity anomaly" of (2+1)-dimensional field theories.

Original languageEnglish (US)
Pages (from-to)2015-2018
Number of pages4
JournalPhysical review letters
Volume61
Issue number18
DOIs
StatePublished - Jan 1 1988
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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