Numerical test of finite-size scaling predictions for the droplet condensation-evaporation transition

27th IUPAP Conference on Computational Physics

物理学;计算机科学

Nubaumer, Andreas^1 ; Zierenberg, Johannes^2 ; Bittner, Elmar^3 ; Janke, Wolfhard^2

Institut für Physik, Johannes Gutenberg Universität Mainz, Staudinger Weg 7, Mainz

D-55128, Germany^1

Institut für Theoretische Physik, Universität Leipzig, Postfach 100 920, Leipzig

D-04009, Germany^2

Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, Heidelberg

D-69120, Germany^3

关键词: Analytical predictions;    Background density;    Droplet condensation;    Finite size scaling;    Finite-size corrections;    Fixed temperature;    Multicanonical simulations;    Thermodynamic limits;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/759/1/012009/pdf
DOI  :  10.1088/1742-6596/759/1/012009

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

We numerically study the finite-size droplet condensation-evaporation transition in two dimensions. We consider and compare two orthogonal approaches, namely at fixed temperature and at fixed density, making use of parallel multicanonical simulations. The equivalence between Ising model and lattice gas allows us to compare to analytical predictions. We recover the known background density (at fixed temperature) and transition temperature (at fixed density) in the thermodynamic limit and compare our finite-size deviations to the predicted leading-order finite-size corrections.