Majorana-Hubbard Ladders

ORAL

Abstract


Models of interacting Majorana modes may be realized in vortex lattices in superconducting films in contact with topological insulators and may be tuned to the strong interaction regime by adjusting the chemical potential. Extending the results on one- and two-dimensional Majorana-Hubbard models, here we study two- and four-leg ladders using both field theory and the {density-matrix renormalization group (DMRG)} methods, finding a phase diagram largely consistent with that proposed for the two-dimensional model on the square lattice.

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Presenters

  • Armin Rahmani

    Western Washington University, Physics, Western Washington University

Authors

  • Armin Rahmani

    Western Washington University, Physics, Western Washington University

  • Dmitry Pikulin

    Microsoft, Microsoft Quantum, Microsoft Station Q, University of California, Santa Barbara, Microsoft Station Q, Station Q, Microsoft, Microsoft Corp

  • Ian Affleck

    University of British Columbia, Stewart Blusson Quantum Matter Institute and the Department of Physics and Astronomy, University of British Columbia, The University of British Columbia, Stewart Blusson Quantum Matter Institute, University of British Columbia