2020/09/30 by Shao-Kai Jian, Shuai Yin
Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Bound state #Condensed matter physics #Hamiltonian (control theory) #Josephson effect #Lattice (music) #MAJORANA #Magnetic field #Mathematics #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Superconductivity #Topological Materials and Phenomena #Topology (electrical circuits) #Zeeman effect #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.103.134514
published as Phys. Rev. B 103, 134514 (2021) · 10 pages, 6 figures
openalex created_date 2020/09/11 · arxiv created 2021/04/26 · openalex publication_date 2021/04/26 · arxiv updated 2021/04/27 · openalex updated_date 2026/08/05
We consider a heterostructure of semiconductor layers sandwiched between two superconductors, forming a two-dimensional Josephson junction. Applying a Zeeman field perpendicular to the junction can render a topological superconducting phase with the chiral Majorana edge mode. We show that the phase difference between two superconductors can efficiently reduce the magnetic field required to achieve the chiral topological superconductivity, providing an experimentally feasible setup to realize chiral Majorana edge modes. We also construct a lattice Hamiltonian of the setup to demonstrate the chiral Majorana edge mode and the Majorana bound state localized in vortices.