Topics in coarsening phenomena
نویسندگان
چکیده
منابع مشابه
Persistence and Life Time Distribution in Coarsening Phenomena
We investigate the life time distribution P (τ, t) in one dimensional and two dimensional coarsening processes modelled by Ising-Glauber dynamics at zero temperature. The life time τ is defined as the time that elapses between two successive flips in the time interval (0, t) or between the last flip and the observation time t. We calculate P (τ, t) averaged over all the spins in the system and ...
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We characterize the spatial spreading of the coarsening process in the Allen-Cahn equation in terms of the propagation of a nonlinear modulated front. Unstable periodic patterns of the Allen-Cahn equation are invaded by a front, propagating in an oscillatory fashion, and leaving behind the homogeneous, stable equilibrium. During one cycle of the oscillatory propagation, two layers of the period...
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We report on experimental measurements of the growth of regular domains evolving from an irregular pattern in electroconvection. The late-time growth of the domains is consistent with the size of the domains scaling as t(n). We use two isotropic measurements of the domain size: the structure factor and the domain wall length. Measurements using the structure factor are consistent with t(1/5) gr...
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ژورنال
عنوان ژورنال: Physica A: Statistical Mechanics and its Applications
سال: 2010
ISSN: 0378-4371
DOI: 10.1016/j.physa.2009.12.036