Quantum Hall Effect: Current Distribution and the Role of Measurement
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❄️ cond-mat
keywords
currenthallmeasurementrolealmostargumentsbulkcarried
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Based on very general arguments we show that for any geometry of the experiment, in the regime when the measurement leads to a quantized Hall conductivity, almost the entire current injected into the sample is carried by the bulk states. The crucial role of the contacts equilibrating different edge channels is emphasized.
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