0000000000172568

AUTHOR

B. J. Schulz

showing 3 related works from this author

Avoiding Boundary Effects in Wang-Landau Sampling

2003

A simple modification of the ``Wang-Landau sampling'' algorithm removes the systematic error that occurs at the boundary of the range of energy over which the random walk takes place in the original algorithm.

Heterogeneous random walk in one dimensionStatistical Mechanics (cond-mat.stat-mech)Rejection samplingFOS: Physical sciencesSlice samplingSampling (statistics)Boundary (topology)Random walk01 natural sciences010305 fluids & plasmasCombinatorics0103 physical sciencesRange (statistics)Applied mathematics010306 general physicsEnergy (signal processing)Condensed Matter - Statistical MechanicsMathematics
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Suppression of capillary wave broadening of interfaces in binary alloys due to elastic interactions.

2005

By Monte Carlo simulations in the constant-temperature--constant-pressure ensemble a planar interface between unmixed A-rich and B-rich phases of a binary (A, B) alloy on a compressible diamond lattice is studied. No significant capillary wave broadening of the concentration profile across the interface is observed, unlike lattice models of incompressible mixtures and fluids. The distortion of the lattice structure across the interface is studied.

MagnetizationCapillary wavePlanarMaterials scienceCondensed matter physicsLattice (order)Monte Carlo methodCompressibilityGeneral Physics and AstronomyCrystal structureDiamond cubicPhysical review letters
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First-order interface localization-delocalization transition in thin Ising films using Wang-Landau sampling

2004

Using extensive Monte Carlo simulations, we study the interface localization- delocalization transition of a thin Ising film with antisymmetric competing walls for a set of parameters where the transition is strongly first-order. This is achieved by estimating the density of states (DOS) of the model by means of Wang-Landau sampling (WLS) in the space of energy, using both, single-spin-flip as well as N-fold way updates. From the DOS we calculate canonical averages related to the configurational energy, like the internal energy, the specific heat, as well as the free energy and the entropy. By sampling microcanonical averages during simulations we also compute thermodynamic quantities relat…

Statistical Mechanics (cond-mat.stat-mech)Internal energyCondensed matter physicsAntisymmetric relationMonte Carlo methodFOS: Physical sciencesMaxima and minimaDensity of statesIsing modelStatistical physicsMaximaScalingCondensed Matter - Statistical MechanicsMathematicsPhysical Review E
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