6533b7d2fe1ef96bd125df5a

RESEARCH PRODUCT

Phase transitions in nonadditive hard disc systems: a Gibbs ensemble Monte Carlo Study

F. SchneiderP. NielabaM. O. Ihm

subject

Condensed Matter::Soft Condensed MatterCanonical ensemblePhysicsPhase transitionCritical lineMonte Carlo methodDynamic Monte Carlo methodStatistical physicsFunction (mathematics)ScalingMixing (physics)

description

we study the properties of a model fluid in two dimensions with Gibbs ensemble Monte Carlo (GEMC) techniques, in particular we analyze the entropy-driven phase separation in case of a nonadditive symmetric hard disc fluid. By a combination of GEMC with finite size scaling techniques we locate the critical line of nonadditivities as a function of the system density, which separates the mixing/demixing regions and compare with a simple analytical approximation.

https://doi.org/10.1007/bfb0110770