2018/10/02 by Ady Stern, Erez Berg · 2 citations
Materials Science · Physics and Astronomy · #Condensed matter physics #Graphene research and applications #Josephson effect #MAJORANA #Magnetic field #Magnetic flux quantum #Materials science #Nanotechnology #Physics #Pi Josephson junction #Proximity effect (electron beam lithography) #Quantum Mechanics and Non-Hermitian Physics #Quantum mechanics #Superconductivity #Supercurrent #Topological Materials and Phenomena #Topology (electrical circuits) #Vortex #Zero mode #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.122.107701
published as Phys. Rev. Lett. 122, 107701 (2019) · eight pages. Includes a link to animation
arxiv created 2018/10/02 · openalex publication_date 2019/03/14 · arxiv updated 2019/03/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider the one-dimensional (1D) topological superconductor that may form in a planar superconductor-metal-superconductor Josephson junction in which the metal is subjected to spin-orbit coupling and to an in-plane magnetic field. This 1D topological superconductor has been the subject of recent theoretical and experimental attention. We examine the effect of a perpendicular magnetic field and a supercurrent driven across the junction on the position and structure of the Majorana zero modes that are associated with the topological superconductor. In particular, we show that under certain conditions the Josephson vortices fractionalize to half-vortices, each carrying half of the superconducting flux quantum and a single Majorana zero mode. Furthermore, we show that the system allows for a current-controlled braiding of Majorana zero modes.