Majorana fermions in carbon nanotubes

Abstract

We show that carbon nanotubes (CNT) are good candidates for realizing one-dimensional topological superconductivity with Majorana fermions localized near the end points. The physics behind topological superconductivity in CNT is novel and is mediated by a recently reported curvature-induced spin-orbit coupling which itself has a topological origin. In addition to the spin-orbit coupling, an important new requirement for a robust topological state is broken chirality symmetry about the nanotube axis. We use topological arguments to show that, for recently realized strengths of spin-orbit coupling and broken chirality symmetry, a robust topological gap of around 500 mK is achievable in carbon nanotubes.

4 pages, 3 figures

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Cited by in corpus (27)

• Large spin-orbit coupling in carbon nanotubes
• Nanomaterials for Quantum Information Science and Engineering
• Majorana bound states in semiconducting nanostructures
• Exact eigenvectors and eigenvalues of the finite Kitaev chain and its topological properties
• Majorana and parafermion corner states from two coupled sheets of bilayer graphene
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• Majorana quasiparticles in semiconducting carbon nanotubes
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