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Exactness of linear response in the quantum Hall effect

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 نشر من قبل Sven Bachmann
 تاريخ النشر 2020
  مجال البحث فيزياء
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In general, linear response theory expresses the relation between a driving and a physical systems response only to first order in perturbation theory. In the context of charge transport, this is the linear relation between current and electromotive force expressed in Ohms law. We show here that, in the case of the quantum Hall effect, all higher order corrections vanish. We prove this in a fully interacting setting and without flux averaging.



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