Detecting Majorana Bound States by Nanomechanics

Abstract

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.

6 pages, 4 figures

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Cited by in corpus (15)

• New directions in the pursuit of Majorana fermions in solid state systems
• Search for Majorana fermions in superconductors
• Exact ground states and topological order in interacting Kitaev/Majorana chains
• Failure of protection of Majorana based qubits against decoherence
• Spin-helical transport in normal and superconducting topological insulators
• Detecting Majoranas in 1D wires by charge sensing
• Squeezing light with Majorana fermions
• Majorana qubit rotations in microwave cavities
• Direct cavity detection of Majorana pairs
• Coherent manipulation of a Majorana qubit by a mechanical resonator
• Proposed Detection of the Topological Phase in Ring-Shaped Semiconductor-Superconductor Nanowires Using Coulomb Blockade Transport
• Teleportation-induced entanglement of two nanomechanical oscillators coupled to a topological superconductor
• Study on the tunneling spectroscopy of $N-pS$ junction and $N-hS$ junction
• Charge-impurity-induced Majorana fermions in topological superconductors
• Robustness of Topological Order in Semiconductor-Superconductor Nanowires in the Coulomb Blockade Regime