In this review we give a detailed description of the recently developed helium-3 spin-echo
technique and its application to several classes of surface dynamic measurements. We …

In this short review, we provide an update of recent developments in Kramers' theory of
reaction rates. After a brief introduction stressing the importance of this theory initially …

Understanding the thermally activated escape from a metastable state is at the heart of
important phenomena such as the folding dynamics of proteins,, the kinetics of chemical …

We present a numerical study of classical particles diffusing on a solid surface. The particles'
motion is modeled by an underdamped Langevin equation with ordinary thermal noise. The …

Two-dimensional (2D) nanomaterials have numerous interesting chemical and physical
properties that make them desirable building blocks for the manufacture of macroscopic …

We present a numerical and partially analytical study of classical particles obeying a
Langevin equation that describes diffusion on a surface modeled by a two-dimensional …

Brownian escape is key to a wealth of physico-chemical processes, including polymer
folding and information storage. The frequency of thermally activated energy barrier …

An elementary process occurring on surfaces is diffusion. The dynamics is simplest when
the concentration of adsorbates is sufficiently small that interaction between adsorbates can …

Thermally induced particle hopping in the nanoscale double-well potential is fundamental in
material design and device operation. After the proposal of the basic hopping theory, several …

In this paper we present a systematic and rigorous method for calculating the diffusion
tensor for a Brownian particle moving in a periodic potential which is valid in arbitrary …