Finite Temperature Fractional Quantum Hall Effect

Details Finite Temperature Fractional Quantum Hall Effect Finite Temperature Fractional Quantum Hall Effect

1994-09-18

arxiv.org/abs/cond-mat/9409075v1

Physics

Condensed Matter

12 pages, Revtex (3 figures will be sent through airmail upon request)

Scientific paper

10.1103/PhysRevB.51.4645

We investigate fractional quantum Hall effect at finite temperature using a fermion Chern-Simons field theoretical approach. In the absence of impurity scattering, the essential aspects of fractional quantum Hall effect, such as the quantization of Hall conductance, as well as quasi-particle charge and statistics are unrenormalized by thermal fluctuations. On the other hand, we find that the low energy excitation spectrum at finite $T$ may undergo some qualitative changes as temperature raises. Possible experimental consequences are discussed.

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