Chargeless Heat Transport in the Fractional Quantum Hall Regime
Chargeless Heat Transport in the Fractional Quantum Hall Regime
We demonstrate a direct approach to investigate heat transport in the fractional quantum Hall regime. At a filling factor of $\ensuremath{\nu}=4/3$, we inject power at quantum point contacts and detect the related heating from the activated current through a quantum dot. The experiment reveals a chargeless heat transport from a …