2020/03/31 by Song-Bo Zhang, Alessio Calzona, Björn Trauzettel · 68 citations
Materials Science · Mathematics · Physics and Astronomy · #2D Materials and Applications #Advanced Condensed Matter Physics #Bound state #Combinatorics #Computer science #Condensed matter physics #Fermion #MAJORANA #Majorana fermion #Materials science #Mathematics #Monolayer #Nanotechnology #Physics #Quantum #Quantum computer #Quantum mechanics #Qubit #Scalability #Superconductivity #Topological Materials and Phenomena #Topological quantum computer #Topology (electrical circuits) #cond-mat.mes-hall #cond-mat.mtrl-sci #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.102.100503
published in Physical review. B./Physical review. B 102(10) (American Physical Society) · close to the published version; supplemental materials are included
arxiv created 2020/09/05 · openalex publication_date 2020/09/10 · arxiv updated 2020/09/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Second-order topological superconductors (SOTSs) host localized Majorana fermions and provide a new platform for topological quantum computation. We propose a feasible way to realize networks based on SOTSs which allow one to nucleate and braid Majorana bound states (MBSs) in an all-electrical manner without fine-tuning. The proposed setups are scalable in a straightforward way and can accommodate any even number of MBSs. Moreover, the MBSs in the networks allow defining qubits whose states can be initialized and read out by measuring Josephson currents flowing between SOTS islands. Our proposal can be implemented in monolayers of FeTe_1\ensuremath-xSex, monolayers of 1T^\ensuremath'\text\ensuremath-WTe2, and inverted Hg(Cd)Te quantum wells in proximity to conventional superconductors.