Related Experiment Video
Updated: May 30, 2026

In Situ Monitoring of Diffusion of Guest Molecules in Porous Media Using Electron Paramagnetic Resonance Imaging
Published on: September 2, 2016
Observation of subdiffusion in a disordered interacting system
E Lucioni1, B Deissler, L Tanzi
1LENS and Dipartimento di Fisica e Astronomia, Università di Firenze, and INO-CNR, Sesto Fiorentino, Italy. lucioni@lens.unifi.it
Abstract:
We study the transport dynamics of matter-waves in the presence of disorder and nonlinearity. An atomic Bose-Einstein condensate that is localized in a quasiperiodic lattice in the absence of atom-atom interaction shows instead a slow expansion with a subdiffusive behavior when a controlled repulsive interaction is added. The measured features of the subdiffusion are compared to numerical simulations and a heuristic model. The observations confirm the nature of subdiffusion as interaction-assisted hopping between localized states and highlight a role of the spatial correlation of the disorder.
More Related Videos
Related Concept Videos
Diffusion
Diffusion
Interference and Diffraction
Theories of Dissolution: Diffusion Layer Model
This process starts with a thin layer, saturated with the drug, forming at the interface between the solid and liquid. The solute then diffuses from this layer into the main solution. The Noyes-Whitney equation suggests that the rate of dissolution relies on the diffusion...
Theories of Dissolution: The Danckwerts' Model and Interfacial Barrier Model
Behavior of Gas Molecules: Molecular Diffusion, Mean Free Path, and Effusion

