Dynamical quantum correlations after sudden quenches

  title={Dynamical quantum correlations after sudden quenches},
  author={Utkarsh Mishra and Hadi Cheraghi and S. Mahdavifar and R. Jafari and A. Akbari},
  journal={Physical Review A},
We employ the mean-field approach in the fermionic picture of the spin-1/2 XXZ chain to investigate the dynamics of bipartite quantum discord and concurrence under sudden quenching. In the case, when quenching is performed in the anisotropy from an initial value to the critical point, the quantum correlations show periodic cusps in time. Moreover, the first suppression (cusp) in quantum correlations can be explained in terms of the semi-classical picture of quasiparticle propagation. On the… Expand
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