Corpus ID: 209444623

Ultrafast entanglement dynamics and spreading of quantum correlations in two-dimensional antiferromagnets

@article{Fabiani2019UltrafastED,
  title={Ultrafast entanglement dynamics and spreading of quantum correlations in two-dimensional antiferromagnets},
  author={G. Fabiani and J. H. Mentink},
  journal={arXiv: Strongly Correlated Electrons},
  year={2019}
}
  • G. Fabiani, J. H. Mentink
  • Published 2019
  • Physics
  • arXiv: Strongly Correlated Electrons
  • We numerically study the real space-time dynamics of magnon pairs in the two-dimensional antiferromagnetic Heisenberg model after short perturbations of the exchange interaction. Analogous to the dynamics following quantum quenches in one dimension, we find ultrafast light-cone like spreading of quantum spin correlations. Interestingly, the spreading speed is larger than can be expected from the highest magnon or spinon group velocities. Opposed to results in one dimension, the evolution of… CONTINUE READING

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