Detecting Majorana Bound States by Nanomechanics

Details Detecting Majorana Bound States by Nanomechanics Detecting Majorana Bound States by Nanomechanics

2011-08-12

arxiv.org/abs/1108.2607v2

Phys. Rev. B 84, 224510 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 4 figures

Scientific paper

10.1103/PhysRevB.84.224510

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.

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