Quenching across quantum critical points: Role of topological patterns

@article{Sen2010QuenchingAQ,
  title={Quenching across quantum critical points: Role of topological patterns},
  author={Diptiman Sen and Smitha Vishveshwara},
  journal={EPL},
  year={2010},
  volume={91},
  pages={66009}
}
We introduce a one-dimensional version of the Kitaev model consisting of spins on a two-legged ladder and characterized by Z2 invariants on the plaquettes of the ladder. We map the model to a fermionic system and identify the topological sectors associated with different Z2 patterns in terms of fermion occupation numbers. Within these different sectors, we investigate the effect of a linear quench across a quantum critical point. We study the dominant behavior of the system by employing a… Expand

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