Tuning interaction strength leads to an ergodic-nonergodic transition of quantum correlations in the anisotropic Heisenberg spin model

  title={Tuning interaction strength leads to an ergodic-nonergodic transition of quantum correlations in the anisotropic Heisenberg spin model},
  author={Utkarsh Mishra and R. Prabhu and A. S. De and U. Sen},
  journal={Physical Review A},
We investigate the time dynamics of quantum correlations of the anisotropic Heisenberg model in a time-dependent magnetic field, in one-dimensional, ladder, and two-dimensional lattices. We find that quantum correlation measures in the entanglement-separability paradigm are ergodic in these systems irrespective of system parameters. However, information-theoretic quantum correlation measures can also be nonergodic, and exhibit a transition from nonergodic to ergodic behavior with the change of… Expand
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  • Rev. E 60, 3949 (1999); E. Plekhanov, A. Avella, and F. Mancini, Phys. Rev. B 74, 115120 (2006); S. Deng, G. Ortiz, and L. Viola, Europhys. Lett. 84 67008 (2008); Phys. Rev. B 80, 241109(R) (2009); M. Znidaric, T. Prosen, G. Benenti, G. Casati, and D. Rossini, Phys. Rev. E 81, 051135 (2010); G. Sadi
  • 2013
  • Sen(De), and U. Sen, arxiv:1103.3836 [quant-ph]; Phys. Rev. A 86, 012336
  • 2012
New J
  • Phys. 14 095024
  • 2012
  • Mod. Phys 84, 1655
  • 2012
  • Phys, 7, 399
  • 2011
  • Rev. Lett. 105, 077202
  • 2010
  • Raussendorf, and M.V. den Nest, Nat. Phys. 5, 19
  • 2009
  • Mod. Phys. 81, 865
  • 2009