Tuning the topology of p -wave superconductivity in an analytically solvable two-band model

@article{Hu2020TuningTT,
  title={Tuning the topology of 
p
-wave superconductivity in an analytically solvable two-band model},
  author={Haiping Hu and Erhai Zhao and Indubala I. Satija},
  journal={Physical Review B},
  year={2020}
}
We introduce and solve a two-band model of spinless fermions with $p_x$-wave pairing on a square lattice. The model reduces to the well-known extended Harper-Hofstadter model with half-flux quanta per plaquette and weakly coupled Kitaev chains in two respective limits. We show that its phase diagram contains a topologically nontrivial weak pairing phase as well as a trivial strong pairing phase as the ratio of the pairing amplitude and hopping is tuned. Introducing periodic driving to the model… 

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