6533b852fe1ef96bd12ab8ec

RESEARCH PRODUCT

Tricritical universality in a two-dimensional spin fluid

Peter NielabaNigel B. Wilding

subject

PhysicsTricritical pointMonte Carlo methodCondensed Matter (cond-mat)Condensed Matter::Statistical MechanicsFOS: Physical sciencesCondensed MatterStatistical physicsRenormalization groupWidom scalingScalingCondensed Matter::Disordered Systems and Neural NetworksUniversality (dynamical systems)

description

Monte Carlo simulations are used to investigate the tricritical point properties of a 2d spin fluid. Measurements of the scaling operator distributions are employed in conjunction with a finite-size scaling analysis to locate the tricritical point and determine the directions of the relevant scaling fields and their associated tricritical exponents. The scaling operator distributions and exponents are shown to match quantitatively those of the 2d Blume-Capel model, confirming that both models belong to the same universality class. Mean-field calculations of the tricritical point properties are also compared with the simulation measurements.

yearjournalcountryeditionlanguage
1995-10-11
https://dx.doi.org/10.48550/arxiv.cond-mat/9510051