• DOI:10.1103/PhysRevB.93.115113
• Corpus ID: 119215459

Dissipative topological superconductors in number-conserving systems

@article{Iemini2015DissipativeTS,
  title={Dissipative topological superconductors in number-conserving systems},
  author={Fernando Iemini and Davide Rossini and Rosario Fazio and Sebastian Diehl and Leonardo Mazza},
  journal={Physical Review B},
  year={2015},
  volume={93},
  pages={115113}
}

• F. Iemini, D. Rossini, +2 authors L. Mazza
• Published 14 December 2015
• Physics
• Physical Review B

We discuss the dissipative preparation of p-wave superconductors in number-conserving one-dimensional fermionic systems. We focus on two setups: the first one entails a single wire coupled to a bath, whereas in the second one the environment is connected to a two-leg ladder. Both settings lead to stationary states which feature the bulk properties of a p-wave superconductor, identified in this number-conserving setting through the long-distance behavior of the proper p-wave correlations. The two schemes differ in the fact that the steady state of the single wire is not characterized by topological order, whereas the two-leg ladder hosts Majorana zero modes, which are decoupled from damping and exponentially localized at the edges. Our analytical results are complemented by an extensive numerical study of the steady-state properties, of the asymptotic decay rate and of the robustness of the protocols.