Dissipative transport across a parabolic barrier

H. Hofmann and G.-L. Ingold

Phys. Lett. B 264, 253–258 (1991) DOI: 10.1016/0370-2693(91)90344-P

We suggest quantal diffusion coefficients for Kramers' transport equation and discuss the dynamics of fluctuations in the neighborhood of a barrier, considered generic for an instability of a system's response to an external perturbation.