Author:
Mugita Daigo,Isobe Masaharu
Abstract
The relaxation from a non-equilibrium state to the equilibrium depends on the methodologies and initial conditions. To investigate the microscopic mechanisms of equilibration systematically, we focus on the non-equilibrium response during the equilibration process induced by a disturbance of the homogeneous expansion of the simple hard disk systems. Large scale simulations by event-driven molecular dynamics revealed that an anomalous slow equilibration toward the liquid states emerges when starting from the co-existence phase. The origin of the slow decay mechanism is investigated using the probability distribution of local density and orientational order parameter.Their inhomogeneities seem to cause the anomalous slow equilibration.
Reference17 articles.
1. Krauth W., Statistical mechanics: algorithms and computations (Oxford University Press, Oxford, 2006)
2. Phase Transition for a Hard Sphere System
3. Studies in Molecular Dynamics. I. General Method
4. SIMPLE AND EFFICIENT ALGORITHM FOR LARGE SCALE MOLECULAR DYNAMICS SIMULATION IN HARD DISK SYSTEM
5. Hiwatari Y., Isobe M., eds., The 50th anniversary of the Alder transition — recent progress on computational statistical physics, 178, Prog. Theor. Phys. Suppl. (2009)