Probing the Hall Voltage in Synthetic Quantum Systems
Maximilian Buser, Sebastian Greschner, Ulrich Schollwöck, Thierry Giamarchi
Abstract
In the context of experimental advances in the realization of artificial magnetic fields in quantum gases, we discuss feasible schemes to extend measurements of the Hall polarization to a study of the Hall voltage, allowing for direct comparison with solid state systems. Specifically, for the paradigmatic example of interacting flux ladders, we report on characteristic zero crossings and a remarkable robustness of the Hall voltage with respect to interaction strengths, particle fillings, and ladder geometries, which is unobservable in the Hall polarization. Moreover, we investigate the site-resolved Hall response in spatially inhomogeneous quantum phases.
Topics & Concepts
Quantum Hall effectPhysicsQuantum spin Hall effectRobustness (evolution)Magnetic fieldHall effectPolarization (electrochemistry)Condensed matter physicsThermal Hall effectUnobservableQuantumMagnetic fluxQuantum mechanicsChemistryEpistemologyPhilosophyPhysical chemistryBiochemistryGenePhysics of Superconductivity and MagnetismQuantum and electron transport phenomenaCold Atom Physics and Bose-Einstein Condensates