Many-body Majorana-like zero modes without gauge symmetry breaking

@article{Vadimov2020ManybodyMZ,
  title={Many-body Majorana-like zero modes without gauge symmetry breaking},
  author={Vasilii Vadimov and Timo Hyart and Jose L. Lado and Mikko M{\"o}tt{\"o}nen and Tapio Ala‐Nissila},
  journal={Physical Review Research},
  year={2020},
  volume={3}
}
Topological superconductors represent one of the key hosts of Majorana-based topological quantum computing. Typical scenarios for one-dimensional topological superconductivity assume a broken gauge symmetry associated to a superconducting state. However, no interacting one-dimensional many-body system is known to spontaneously break gauge symmetries. Here, we show that zero modes emerge in a many-body system without gauge symmetry breaking and in the absence of superconducting order. In… 

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