Quantum point contact between compressible Quantum Hall liquids
نویسنده
چکیده
We elaborate on a theory of electronic transport through a quantum point contact (QPC) in the Quantum Hall (QH) regime, which does not discriminate between compressible and incompressible QH liquids, and accounts for both diffusive and ballistic regimes of the bulk electron motion. In either regime we find departures from the accustomed chiral Luttinger liquid behavior. The results suggest that away from incompressible Fractional Quantum Hall (FQH) states the resonance peak conductance of a QPC between two QH liquids might deviate from a universal value given by the bulk Hall conductivity, similar to the absence of the conductance quantization in a quantum wire connected to non-Fermi-liquid leads.
منابع مشابه
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