2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/130298We report on the transport measurements of two-dimensional holes in GaAs field effect transistors with record low densities down to 7*10^8 cm^{-2}. Remarkably, such a dilute system (with Fermi wavelength approaching 1 micrometer) exhibits a non-activated conductivity that grows with temperature following a power law. We contrast it with the activated transport obtained from measuring more disordered samples, and discuss possible transport mechanisms in this strongly-interacting regime.5 pages, 4 figuresMesoscale and Nanoscale PhysicsStrongly Correlated Electronstext