Linguistics

Philosophy

Metallurgy

Materials science

Steady state (chemistry)

Computer science

Statistical physics

Physical chemistry

Physics

Organic chemistry

Image (mathematics)

Artificial intelligence

Distinctive feature

Chemistry

Flux (metallurgy)

Mechanics

Noise (video)

Physical Review Letters

We prove rigorously and demonstrate in simulations that, for a potential system staying initially at the bottom of a well, the escape flux over the barrier grows on times of the order of a period of eigenoscillation in a stepwise manner, provided that friction is small or moderate. If the initial state is not at the bottom of the well, then, typically, some of the steps transform into oscillations. The stepwise/oscillatory evolution at short times appears to be a generic feature of a noise-induced flux.

Short Time Scales in the Kramers Problem: A Stepwise Growth of the Escape Flux