title: Parallel multicanonical study of the three-dimensional Blume-Capel model.
abstract: We study the thermodynamic properties of the three-dimensional Blume-Capel model on the simple cubic lattice by means of computer simulations. In particular, we implement a parallelized variant of the multicanonical approach and perform simulations by keeping a constant temperature and crossing the phase boundary along the crystal-field axis. We obtain numerical data for several temperatures in both the first- and second-order regime of the model. Finite-size scaling analyses provide us with transition points and the dimensional scaling behavior in the numerically demanding first-order regime, as well as a clear verification of the expected Ising universality in the respective second-order regime. Finally, we discuss the scaling behavior in the vicinity of the tricritical point.
authors: Institut für Theoretische Physik, Universität Leipzig, Postfach 100 920, D-04009 Leipzig, Germany.
authors: Johannes
authors: J
authors: Zierenberg
authors: Applied Mathematics Research Centre, Coventry University, Coventry CV1 5FB, United Kingdom.
authors: Nikolaos G
authors: NG
authors: Fytas
authors: Institut für Theoretische Physik, Universität Leipzig, Postfach 100 920, D-04009 Leipzig, Germany.
authors: Wolfhard
authors: W
authors: Janke