Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1998-10-28
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
8 pages, this paper supersedes cond-mat/9802290, hep-th/9802123, misprints corrected, references added
Scientific paper
We obtain the distribution functions for anyonic excitations classified into equivalence classes labeled by Hausdorff dimension $h$ and as an example of such anyonic systems, we consider the collective excitations of the Fractional Quantum Hall Effect (FQHE). We also introduce the concept of duality between such classes, defined by $\tilde{h}=3-h$. In this way, we confirm that the filling factors for which the FQHE were observed just appears into these classes and the internal duality for a given class $h$ or $\tilde{h}$ is between quasihole and quasiparticle excitations for these FQHE systems. Exchanges of dual pairs $(\nu,\tilde{\nu})$, suggests conformal invariance. A connection between equivalence classes $h$ and the modular group for the quantum phase transitions of the FQHE is also obtained. A $\beta-$function is also defined for the complex conductivity which embodies the $h$ classes.
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