Theory of Phase Separation in Finite-Lifetime Systems

Abstract

We study the phase separation dynamics in finite lifetime systems. Particles created by the external fields are unstable and decay within the finite lifetime. Effects of the particle lifetime and the interparticle interaction for the phase separation dynamics are discussed. In our theory, the formulation is based on the coarse-grained lattice gas model. As a result, effects of the finite lifetime are that the phase separation is restrained and that the finite size of domains remain finally at t = X .

Keywords:

• Phase Separation
• Spinodal Decomposition
• Lifetime
• Kinetic Theory
• Coarse-graining
• Lattice Gas