Conservation laws protect dynamic spin correlations from decay: Limited role of integrability in the central spin model

@article{Uhrig2014ConservationLP,
  title={Conservation laws protect dynamic spin correlations from decay: Limited role of integrability in the central spin model},
  author={Goetz S. Uhrig and Johannes Hackmann and Daniel Stanek and Joachim Stolze and Frithjof B. Anders},
  journal={Physical Review B},
  year={2014},
  volume={90},
  pages={060301}
}
  • Goetz S. Uhrig, Johannes Hackmann, +2 authors Frithjof B. Anders
  • Published 2014
  • Physics
  • Physical Review B
  • Introduction. The two-time correlation function of two observables reveals important information about the dynamics of a system in and out of equilibrium: The noise spectra are obtained from symmetric combinations of correlation functions, whereas the causal antisymmetric combination determines the susceptibilities required for the theory of linear response. The two-time correlation function only depends on the time difference if at t = 0 the system of interest is prepared in a stationary state… CONTINUE READING

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