ELFT HÍRADÓ

[Hajnal Zoltán <hajnal AT mfa.kfki.hu>]

Kedves Kollegak!

A jovo heti MFA szeminarium eloadoja:

        Odor Geza
        MTA MFA
        Komplex Rendszerek

Cime:

        A rendezetlenseg hatasa 
        paritasorzo kritikus nemegyensulyi rendszerekben
                (angol nyelvu kivonata alabb olvasgato)

Helyszine es idopontja a megszokott:

        MTA MFA (KFKI Campus, 26. ep) Tanacsterem
        2006. jan. 18. szerda 11:00


Minden erdeklodot szivesen latunk!

        Udvozlettel,
                Hajnal Zoltan

- x - x -


A cond-mat-ra bekuldott preprint:
http://arxiv.org/abs/cond-mat/0512252

A stochastic cellular automaton exhibiting parity conserving class
transition has been investigated in the presence of quenched spatial 
disorder by large scale simulations. Numerical evidence has been found 
that weak disorder causes irrelevant perturbation for the universal 
behavior of the transition and the absorbing phase of this model. This 
opens up the possibility for experimental observation of the critical 
behavior of a nonequilibrium phase transition to absorbing state. For
very strong disorder the model breaks up to blocks with exponential size
distribution and continuously changing critical exponents are observed.
For strong disorder the randomly distributed diffusion walls introduce
another transition within the inactive phase of the model, in which
residual particles survive the extinction. The critical dynamical
behavior of this transition has been explored.