### Abstract

The momentum distribution function (n(k)) of a narrow Hall bar in the fractional quantum Hall effect regime is investigated using Luttinger liquid and microscopic many-particle wavefunction approaches. For wide Hall bars with filling factor v = 1/M, where M is an odd integer, n(k) has singularities at ±Mk_{F}. We find that for narrow Hall bars additional singularities occur at smaller odd integral multiples of k_{F}: n(k) ∼ A_{p}|k±pk_{F}|^{2Δp-1} near k = ±Pk_{F}, where p is an odd integer M, M - 2, M 4, ..., 1. If inter-edge interactions can be neglected, the exponent 2Δ_{P} = (1/v+p^{2}v)/2 is independent of the width (w) of the Hall bar but the amplitude of the singularity A_{p} vanishes exponentially with w for p ≠ M.

Original language | English |
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Pages (from-to) | S10-S12 |

Journal | Journal of the Korean Physical Society |

Volume | 29 |

Issue number | SUPPL. Part 1 |

Publication status | Published - 1996 |

### ASJC Scopus subject areas

- Physics and Astronomy(all)

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## Cite this

*Journal of the Korean Physical Society*,

*29*(SUPPL. Part 1), S10-S12.