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Effects of density conservation and hydrodynamics on aging in nonequilibrium processes
- Source :
- Physical review letters. 111(5)
- Publication Year :
- 2013
-
Abstract
- Aging in kinetics of three different phase transitions, viz., magnetic, binary solid and single component fluid, have been studied via Monte Carlo and molecular dynamics simulations in three space dimensions with the objective of identifying the effects of order-parameter conservation and hydrodynamics. We observe that the relevant autocorrelations exhibit power-law decay in ferromagnet and binary solid but with different exponents. At early time fluid autocorrelation function nicely follows that of binary solid, the order parameter being conserved for both of them, as opposed to a ferromagnet. At late time the fluid data crosses over to an exponential decay which we identify as a hydrodynamic effect and provide analytical justification for this behavior.<br />4 pages, 4 figures
- Subjects :
- Physics
Phase transition
Statistical Mechanics (cond-mat.stat-mech)
Autocorrelation
Monte Carlo method
FOS: Physical sciences
General Physics and Astronomy
Binary number
Non-equilibrium thermodynamics
Molecular Dynamics Simulation
Space (mathematics)
Phase Transition
Molecular dynamics
Models, Chemical
Hydrodynamics
Magnets
Statistical physics
Exponential decay
Monte Carlo Method
Condensed Matter - Statistical Mechanics
Subjects
Details
- ISSN :
- 10797114
- Volume :
- 111
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- Physical review letters
- Accession number :
- edsair.doi.dedup.....87c646ec04b28d7cea3f1758f58b76c4