2015/03/09 by D. Slobinsky, Demian Slobinsky, Luis A. Pugnaloni +1 · 1 citation
Chemistry · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Entropy (arrow of time) #Fusion #Granular material #Granular matter #License #Material Dynamics and Properties #Nonlinear Photonic Systems #Sampling (signal processing) #Volume (thermodynamics) #cond-mat.soft
paper · pdf · doi:10.4279/pip.070001
published in Papers in Physics 7, 070001 (Papers in Physics) · 9 pages, 3 figures
openalex publication_date 2015/03/09 · arxiv created 2015/10/05 · arxiv updated 2016/08/31 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/05
We implement the Wang-Landau algorithm to sample with equal probabilities the static configurations of a model granular system. The "non-interacting rigid arch model" used is based on the description of static configurations by means of splitting the assembly of grains into sets of stable arches. This technique allows us to build the entropy as a function of the volume of the packing for large systems. We make a special note of the details that have to be considered when defining the microstates and proposing the moves for the correct sampling in these unusual models. We compare our results with previous exact calculations of the model made at moderate system sizes. The technique opens a new opportunity to calculate the entropy of more complex granular models.Received: 19 January 2015, Accepted: 25 February 2015; Reviewed by: M. Pica Ciamarra, Nanyang Technological University, Singapore; Edited by: C. S. O'Hern; DOI: 10.4279/PIP.070001Cite as: D Slobinsky, L A Pugnaloni, Papers in Physics 7, 070001 (2015) This paper, by Demian Slobinsky, Luis Ariel Pugnaloni , is licensed under the Creative Commons Attribution License 3.0.