Incorporating Memory Effects in Phase Separation Processes

Details Incorporating Memory Effects in Phase Separation Processes Incorporating Memory Effects in Phase Separation Processes

2006-01-30

arxiv.org/abs/hep-ph/0601256v2

Phys.Lett. B636 (2006) 96-100

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 eps figures. Version in press Phys. Lett. B

Scientific paper

10.1016/j.physletb.2006.03.035

We consider the modification of the Cahn-Hilliard equation when a time delay process through a memory function is taken into account. We then study the process of spinodal decomposition in fast phase transitions associated with a conserved order parameter. Finite-time memory effects are seen to affect the dynamics of phase transition at short times and have the effect of delaying, in a significant way, the process of rapid growth of the order parameter that follows a quench into the spinodal region. These effects are important in several systems characterized by fast processes, like nonequilibrium dynamics in the early universe and in relativistic heavy-ion collisions.

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