title: Wavepacket revivals in monolayer and bilayer graphene rings.
abstract: We have studied the existence of quantum revivals in graphene quantum rings within a simplified model. The time evolution of a Gaussian-populated wavepacket shows revivals in monolayer and bilayer graphene rings. We have also studied this behavior for quantum rings in a perpendicular magnetic field. We have found that revival time is an observable that shows different values for monolayer and bilayer graphene quantum rings. In addition, the revival time shows valley degeneracy breaking.
authors.affiliation: Department of Electronics and Computer Technology and CITIC-UGR, University of Granada, Granada, Spain.
authors.forename: Trinidad
authors.initials: T
authors.lastname: García
authors.forename: Salvador
authors.initials: S
authors.lastname: Rodríguez-Bolívar
authors.forename: Nicolás A
authors.initials: NA
authors.lastname: Cordero
authors.forename: Elvira
authors.initials: E
authors.lastname: Romera