Thermal fluctuation for the time-dependent Ginzburg-Landau simulation
Abstract
Thermal fluctuation for the time-dependent Ginzburg-Landau simulations is considered on the basis of the ensemble theory and the fluctuation-dissipation relation. The treatment for evaluating the thermal fluctuation for a nonconserved system is proposed and the formula for the fluctuation is presented. The magnitude of the fluctuation depends on the coarse-grained volume and the curvature of the free-energy function at thermal equilibrium. The validity of the formula is verified by numerical simulation.
- Publication:
-
Physical Review E
- Pub Date:
- June 2001
- DOI:
- 10.1103/PhysRevE.63.060101
- Bibcode:
- 2001PhRvE..63f0101I
- Keywords:
-
- 05.70.Ce;
- 64.10.+h;
- 05.70.Fh;
- 64.70.Kb;
- Thermodynamic functions and equations of state;
- General theory of equations of state and phase equilibria;
- Phase transitions: general studies;
- Solid-solid transitions