Phase diagrams of Majorana-Hubbard ladders

  title={Phase diagrams of Majorana-Hubbard ladders},
  author={Armin Rahmani and Dmitry I. Pikulin and Ian Affleck},
  journal={Physical Review B},
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… 

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