Physics – Mathematical Physics
Scientific paper
2004-09-23
Physics
Mathematical Physics
Scientific paper
We consider a specific continuous-spin Gibbs distribution $\mu_{t=0}$ for a double-well potential that allows for ferromagnetic ordering. We study the time-evolution of this initial measure under independent diffusions. For `high temperature' initial measures we prove that the time-evoved measure $\mu_{t}$ is Gibbsian for all $t$. For `low temperature' initial measures we prove that $\mu_t$ stays Gibbsian for small enough times $t$, but loses its Gibbsian character for large enough $t$. In contrast to the analogous situation for discrete-spin Gibbs measures, there is no recovery of the Gibbs property for large $t$ in the presence of a non-vanishing external magnetic field. All of our results hold for any dimension $d\geq 2$. This example suggests more generally that time-evolved continuous-spin models tend to be non-Gibbsian more easily than their discrete-spin counterparts.
Kuelske Christof
Redig Frank
No associations
LandOfFree
Loss without recovery of Gibbsianness during diffusion of continuous spins does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Loss without recovery of Gibbsianness during diffusion of continuous spins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Loss without recovery of Gibbsianness during diffusion of continuous spins will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-77856