Work

Probing phase transition order of q-state Potts models using Wang-Landau algorithm

Year: 2014

Type: conference-paper

Abstract: Phase transitions are ubiquitous phenomena, exemplified by the melting of ice and spontaneous magnetization of magnetic material. In general, a phase transition is associated with a symmetry breaking of a system; occurs due to the competition between coupling interaction and external fields such as thermal energy. If the phase transition occurs with no latent heat, the system experiences continuous transition, also known as second order phase transition. The ferromagnetic q-state Potts model with r extra invisible states, introduced by Tamura, Tanaka, and Kawashima [Prog. Theor. Phys. 124, 381 (2010)], is studied by using the Wang-Landau method. The density of states difference (DOSD), ln g(E + ΔE) − ln g(E), is used to investigate the order of the phase transition and examine the critical value of r changing the second to the first order transition.

Source: AIP conference proceedings

DOI: 10.1063/1.4897109

Authors: T. Surungan, Y. Komura, Y. Okabe

Institutions: Hasanuddin University, Tokyo Metropolitan University

Language: English

Topic: Theoretical and Computational Physics

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: Tokyo Metropolitan University, Universitas Hasanuddin, Japan Society for the Promotion of Science

Award: High-performance computing of phase transitions using GPU