Long-time dynamics of the infinite-temperature Heisenberg magnet.

  title={Long-time dynamics of the infinite-temperature Heisenberg magnet.},
  author={Chertkov and Kolokolov},
  journal={Physical review. B, Condensed matter},
  volume={49 5},
  • Chertkov, Kolokolov
  • Published 1994
  • Physics, Medicine
  • Physical review. B, Condensed matter
  • Infinite-temperature long-time dynamics of Heisenberg model H^=-1/2${\mathit{tsum}}_{\mathit{i},}$${\mathit{jJ}}_{\mathit{i}\mathit{j}}$S${\mathrm{^}}_{\mathit{i}}$\ensuremath{\cdot}S${\mathrm{^}}_{\mathit{j}}$ is investigated. It is shown that the quantum-spin pair correlator is equal to the correlator of a classically evaluated vector field averaged over the initial conditions with respect to the Gaussian measure. In the continuous-limit case, the scaling estimations allow one to find the one… CONTINUE READING

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