2016/06/01 by Tomohiro Yoshida, Masafumi Udagawa · 1 citation
Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Electron #Fermi energy #Lattice (music) #MAJORANA #Magnetic field #Physics #Quantum many-body systems #Quantum mechanics #Superconductivity #Topological Materials and Phenomena #Topology (electrical circuits) #Vortex #Vortex state #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.94.060507
published in Physical review. B./Physical review. B 94(6) (American Physical Society) · 5 pages, 3 figures
arxiv created 2016/06/01 · openalex created_date 2016/06/24 · openalex publication_date 2016/08/29 · arxiv updated 2016/09/28 · openalex updated_date 2026/08/06
We study the collective behavior of Majorana modes in the vortex state of chiral p-wave superconductors. Away from the isolated vortex limit, the zero-energy Majorana states communicate with each other on a vortex lattice, and form a coherent band structure with a nontrivial topological character. We reveal that the topological nature of Majorana bands changes sensitively via quantum phase transitions in two-dimensional (2D) systems, by sweeping magnetic field or Fermi energy. Through the idea of dimensional reduction, we show the existence of a generic superconducting Weyl phase in a low magnetic field region of quasi-2D chiral superconductors.