Dimensional Crossover of the Dephasing Time in Disordered Mesoscopic Rings: From Diffusive through Ergodic to 0D Behavior

@article{Treiber2009DimensionalCO,
  title={Dimensional Crossover of the Dephasing Time in Disordered Mesoscopic Rings: From Diffusive through Ergodic to 0D Behavior},
  author={M. Treiber and O. Yevtushenko and F. Marquardt and J. Delft and I. Lerner},
  journal={arXiv: Mesoscale and Nanoscale Physics},
  year={2009}
}
  • M. Treiber, O. Yevtushenko, +2 authors I. Lerner
  • Published 2009
  • Physics
  • arXiv: Mesoscale and Nanoscale Physics
  • We analyze dephasing by electron interactions in a small disordered quasi-one dimensional (1D) ring weakly coupled to leads, where we recently predicted a crossover for the dephasing time $\tPh(T)$ from diffusive or ergodic 1D ($\tPh^{-1} \propto T^{2/3}, T^{1}$) to $0D$ behavior ($\tPh^{-1} \propto T^{2}$) as $T$ drops below the Thouless energy $\ETh$. We provide a detailed derivation of our results, based on an influence functional for quantum Nyquist noise, and calculate all leading and… CONTINUE READING

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