Regensburg 2016 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 44: Critical Phenomena and Phase Transitions
DY 44.1: Vortrag
Mittwoch, 9. März 2016, 15:30–15:45, H47
Finite-size scaling of free-energy barrier in droplet formation and nucleation-like processes — •Johannes Zierenberg, Philipp Schierz, and Wolfhard Janke — Institut für Theoretische Physik, Universität Leipzig, Germany
We study the nucleation free-energy barrier of the droplet formation process upon a temperature change. Employing generalized-ensemble methods allows us to directly access estimates of the free-energy barrier from energy probability distributions. Phenomenological arguments reveal that in this scenario the free-energy barrier scales with N1/2, confirmed by an extensive finite-size scaling analysis. The same scaling is supposed to remain true for other nucleation-like processes such as polymer aggregation.