日時 2019年7月19日(金) 15:00 –

場所大阪大学豊中キャンパス サイバーメディアセンター7F 会議室
http://www.cp.cmc.osaka-u.ac.jp

題目 Coarsening and Percolation in 2d magnetic systems

発表者 Marco Picco氏 (LPTHE, Sorbonne Univ)

要旨

I will present recent results on the study of early time dynamics of
the bidimensional ferromagnetic Ising model instantaneously quenched
from the disordered to the ordered, low temperature, phase. In
particular, I will explain how we can identify a rapid approach to
random critical percolation in a time-scale much shorter than the
equilibration time. I will also discuss how this depends (or not) on
the choice of dynamics (conserved versus non-conserved), the type of
lattice or the addition of disorder.


Fractal character of the phase ordering kinetics of a diluted ferromagnetFederico Corberi, Leticia F. Cugliandolo, Ferdinando Insalata, Marco PiccoJ. Stat. Mech. 043203 (2019) https://arxiv.org/abs/1805.05775
Coarsening and percolation in the kinetic 2d Ising model with spin exchange updates and the voter modelAlessandro Tartaglia, Leticia F. Cugliandolo, Marco PiccoJ. Stat. Mech. 083202 (2018)  https://arxiv.org/abs/1811.12675