title: Single file diffusion in macroscopic Wigner rings.
abstract: The single file diffusion in a circular channel of millimetric charged balls is studied. The evolution in time of the mean square displacement is shown to be subdiffusive, but slower than the powerlike t1/2 behavior observed in circular colloidal systems or predicted in one-dimensional infinite systems.
authors.affiliation: Laboratoire Matière et Systèmes Complexes, UMR 7057 CNRS & Université Paris, 7-140 rue de Lourmel, F-75015 Paris, France.
authors.forename: Gwennou
authors.initials: G
authors.lastname: Coupier
authors.forename: Michel
authors.initials: M
authors.lastname: Saint Jean
authors.forename: Claudine
authors.initials: C
authors.lastname: Guthmann