Dynamical Multiscaling in Quenched Skyrme Systems

Дата и время публикации : 1997-04-25T18:00:30Z

Авторы публикации и институты :
Andrew D. Rutenberg (Oxford)
Wojtek J. Zakrzewski (Durham)
Martin Zapotocky (U. Penn.)

Ссылка на журнал-издание: Europhys.Lett. 39 (1997) 49
Коментарии к cтатье: 8 pages, includes 4 figures. Submitted to Europhysics Letters
Первичная категория: cond-mat.stat-mech

Все категории : cond-mat.stat-mech

Краткий обзор статьи: Strong dynamical scaling violations exist in quenched two-dimensional systems with vector O(3) order parameters. These systems support non-singular topologically stable configurations (skyrmions). By tuning the stability of isolated skyrmions to expand or shrink, we find dramatic differences in the dynamical multiscaling spectrum of decaying moments $< |rho|^n >$ of the topological charge density distribution and in particular in the decay of the energy-density $epsilon sim < |rho| >$. We present a simple two-length-scale model for the observed exponents in the case when isolated skyrmions expand. No such simple model is found when isolated skyrmions shrink.

Category: Physics