Theoretical model of interacting quantum Hall dot chains predicts neutral mode transport that violates the Wiedemann-Franz law with Lorenz ratio scaling as sqrt(chain length).
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cond-mat.mes-hall 2years
2025 2verdicts
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Engineered quantum Hall samples with tunable counter-propagating channels exhibit ballistic transport for unequal up- and downstream numbers and a diffusive regime with diverging equilibration length when numbers match.
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Breakdown of the Wiedemann-Franz law in an interacting quantum Hall metamaterial
Theoretical model of interacting quantum Hall dot chains predicts neutral mode transport that violates the Wiedemann-Franz law with Lorenz ratio scaling as sqrt(chain length).
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Ballistic-to-diffusive transition in engineered counter-propagating quantum Hall channels
Engineered quantum Hall samples with tunable counter-propagating channels exhibit ballistic transport for unequal up- and downstream numbers and a diffusive regime with diverging equilibration length when numbers match.