  The Aharonov-Bohm effect allows one to demonstrate the physical
meaningfulness of magnetic vector potential by passing the current in zero
magnetic field regions.
  In the standard (a {\em two-slit-like}) setup a conducting ring is pierced by
magnetic flux and the quantum interference for an electron passing
simultaneously the two ring arms is observed. Here we show, by analyzing the
transport via evanescent waves, that the ballistic Corbino disk in graphene
subjected to a solenoid magnetic potential may exhibit the conductance
oscillations of the Aharonov-Bohm kind although the current flows through a
single conducting element only.
