M. Ignatiev et B. Chakraborty, Ergodicity-breaking transition and high-frequency response in a simple free-energy landscape, PHYS REV E, 60(1), 1999, pp. R21-R24
We present a simple dynamical model described by a Langevin equation in a p
iecewise parabolic free-energy landscape, modulated by a temperature-depend
ent overall curvature. The zero-curvature point marks a transition to a pha
se with broken ergodicity. The frequency-dependent response near this trans
ition is reminiscent of observations near the glass transition. [S1063-651X
(99)51007-6].