title: Symmetry effects in reversible random sequential adsorption on a triangular lattice.
abstract: Reversible random sequential adsorption of objects of various shapes on a two-dimensional triangular lattice is studied numerically by means of Monte Carlo simulations. The growth of the coverage rho(t) above the jamming limit to its steady-state value rho(infinity) is described by a pattern rho(t) = rho(infinity - deltarhoE(beta)[-(t/tau)beta], where E(beta) denotes the Mittag-Leffler function of order beta element of (0, 1). The parameter tau is found to decay with the desorption probability P_ according to a power law tau = AP_(-gamma). The exponent gamma is the same for all shapes, gamma = 1.29 +/- 0.01, but the parameter A depends only on the order of symmetry axis of the shape. Finally, we present the possible relevance of the model to the compaction of granular objects of various shapes.
authors.affiliation: Faculty of Engineering, Trg D. Obradovića 6, Novi Sad 21000, Serbia and Montenegro.
authors.forename: Lj
authors.initials: Lj
authors.lastname: Budinski-Petković
authors.forename: M
authors.initials: M
authors.lastname: Petković
authors.forename: Z M
authors.initials: ZM
authors.lastname: Jaksić
authors.forename: S B
authors.initials: SB
authors.lastname: Vrhovac