RSS icon
Twitter icon
Facebook icon
Vimeo icon
YouTube icon

Manipulating Majorana fermions in quantum nanowires with broken inversion symmetry

TitleManipulating Majorana fermions in quantum nanowires with broken inversion symmetry
Publication TypeJournal Article
Year of Publication2013
AuthorsX-J. Liu, and A. M. Lobos
JournalPhys. Rev. B
Date Publishedfeb
KeywordsNo Fellows

We study a Majorana-carrying quantum wire, driven into a trivial phase by breaking the spatial inversion symmetry with a tilted magnetic field. Interestingly, we predict that a supercurrent applied in the proximate superconductor is able to restore the topological phase and therefore the Majorana end states. Using Abelian bosonization, we further confirm this result in the presence of electron-electron interactions and show a profound connection of this phenomenon to the commensurate-incommensurate transition in one-dimensional doped Mott insulators. These results have important applications in, e. g., realizing a supercurrent-assisted braiding of Majorana fermions, which proves highly useful in topological quantum computation with realistic Majorana networks. DOI: 10.1103/PhysRevB.87.060504


Subscribe to A Quantum Bit 

Quantum physics began with revolutionary discoveries in the early twentieth century and continues to be central in today’s physics research. Learn about quantum physics, bit by bit. From definitions to the latest research, this is your portal. Subscribe to receive regular emails from the quantum world. Previous Issues...

Sign Up Now

Sign up to receive A Quantum Bit in your email!

 Have an idea for A Quantum Bit? Submit your suggestions to