Finite Temperature Fractional Quantum Hall Effect

Abstract

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.

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

References in corpus (2)

• Response functions and Spectrum of Collective Excitations of Fractional Quantum Hall Effect Systems
• Finite-Wavevector Electromagnetic Response of Fractional Quantized Hall States

Cited by in corpus (5)

• Excitons of Composite Fermions
• Influence of gauge-field fluctuations on composite fermions near the half-filled state
• Hopf invariant for long-wavelength skyrmions in quantum Hall systems for integer and fractional fillings
• Abelian Chern-Simons Theory for the Fractional Quantum Hall Effect in Graphene
• Chern-Simons Field Theory of Two-Dimensional Electrons in the Lowest Landau Level