  We propose a nanomechanical detection scheme for Majorana bound states, which
have been predicted to exist at the edges of a one-dimensional topological
superconductor, implemented, for instance, using a semiconducting wire placed
on top of an s-wave superconductor. The detector makes use of an oscillating
electrode, which can be realized using a doubly clamped metallic beam, tunnel
coupled to one edge of the topological superconductor. We find that a
measurement of the nonlinear differential conductance provides the necessary
information to uniquely identify Majorana bound states.
