On the Lattice Ground State of Densely Packed Hard Ellipses
Soft Condensed Matter
2024-03-27 v1 Statistical Mechanics
Computational Physics
Abstract
Among lattice configurations of densely packed hard ellipses, Monte Carlo simulations are used to identify the so-called parallel and diagonal lattices as the two favourable states. The free energies of these two states are computed for several system sizes employing the Einstein Crystal method. An accurate calculation of the free energy difference between the two states reveals the parallel lattice as the state with lowest free energy. The origin of the entropic difference between the two states is further elucidated by assessing the roles of the translational and rotational degrees of freedom.
Keywords
Cite
@article{arxiv.2403.17194,
title = {On the Lattice Ground State of Densely Packed Hard Ellipses},
author = {Susanne Wagner and Gerhard Kahl and Roman Melnyk and Andrij Baumketner},
journal= {arXiv preprint arXiv:2403.17194},
year = {2024}
}