Wavepacket revivals in monolayer and bilayer graphene rings

J Phys Condens Matter. 2013 Jun 12;25(23):235301. doi: 10.1088/0953-8984/25/23/235301. Epub 2013 May 17.

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.

Publication types

  • Research Support, Non-U.S. Gov't