Anderson, Laurel E.Laitinen, AnttiZimmerman, AndrewWerkmeister, ThomasShackleton, HenryKruchkov, AlexTaniguchi, TakashiWatanabe, KenjiSachdev, SubirKim, Philip2024-07-032024-07-032024-07-032024-06-1210.1103/PhysRevLett.132.246502https://infoscience.epfl.ch/handle/20.500.14299/209047WOS:001246341300003Disorder at etched edges of graphene quantum dots (GQD) enables random all-to-all interactions between localized charges in partially filled Landau levels, providing a potential platform to realize the Sachdev-Ye-Kitaev (SYK) model. We use quantum Hall edge states in the graphene electrodes to measure electrical conductance and thermoelectric power across the GQD. In specific temperature ranges, we observe a suppression of electric conductance fluctuations and slowly decreasing thermoelectric power across the GQD with increasing temperature, consistent with recent theory for the SYK regime.Physical Sciences2-Dimensional Electron-GasThermopowertext::journal::journal article::research article