Dynamical localization of the Hofstadter spectra

Abstract

Recent results on magnetoresistance in a two dimensional electron gas (2DEG) under crossed magnetic and microwave fields show a new class of oscillations, suggesting a new kind of zero-resistance states. We consider the problem from the point of view of the electronic structure dressed by photons due to an in-plane linearly polarized ac field. In the strong modulation limit predictions on dressed Hofstadter spectra are discussed, which could be of interest since the bare spectra have been observed in the past few years.

Electron Pumping under Non-Markovian Dissipation: The Role of the Self-Consistent Field

“…There we used ¼ 0:054 eV for the chemical potential, which is motivated by a previous resonant tunneling diode study. 37) Identical results are found for I ad,2 (flowing to the right) if we set…”