title: Probability of dimer reassociation in two dimensions
abstract: We study the problem of dimer dissociation and reassociation in two dimensions through a random-walk-like calculation. In order to find the probability of dimer reassociation after a given number of hops, we give the exact analytical solution for the probability of a first return into a given region (rhombus) for a two-dimensional random walker on a squared lattice.
authors.affiliation: INFM and CFSBT/CNR, Dipartimento di Fisica dell'Universita di Genova, Via Dodecaneso 33, 16146 Genova, Italy.
authors.initials: F
authors.lastname: Montalenti
authors.initials: R
authors.lastname: Ferrando