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Hole-burning experiments within glassy models with infinite range interactions

Cugliandolo1, Iguain

  • 1Laboratoire de Physique Theorique de l'Ecole Normale Superieure, 24 rue Lhomond, 75231 Paris Cedex 05, France and and Laboratoire de Physique Theorique et Hautes Energies, Jussieu, 5eme etage, Tour 24, 4 Place Jussieu, 75005 Paris, France.

Physical Review Letters
|October 13, 2000
PubMed
Summary

This study models nonresonant spectral hole-burning experiments using glassy systems. An applied AC field alters responses, aiding differentiation between experimental results and system heterogeneities.

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Area of Science:

  • Condensed Matter Physics
  • Statistical Mechanics
  • Nonlinear Dynamics

Background:

  • Nonresonant spectral hole-burning experiments probe dynamics in glassy systems.
  • Mode-coupling theory describes equilibrium dynamics but needs extension for nonequilibrium situations.

Purpose of the Study:

  • To reproduce nonresonant spectral hole-burning experimental results using generalized glassy models.
  • To investigate the influence of AC fields on the integrated linear response and correlations.
  • To differentiate results attributable to spatial heterogeneities in real systems.

Main Methods:

  • Utilizing glassy models with infinite-range interactions.
  • Generalizing the mode-coupling approach to nonequilibrium scenarios.
  • Analyzing the effects of AC field amplitude, frequency, waiting time, recovery time, and oscillation number.

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Main Results:

  • AC field modifies integrated linear response and correlations.
  • The modifications are dependent on AC field amplitude and frequency.
  • The impact of waiting/recovery times and oscillation number was quantified.

Conclusions:

  • The developed model successfully reproduces experimental observations.
  • The findings provide a framework to distinguish intrinsic glassy dynamics from effects of spatial heterogeneities.
  • This work advances the understanding of nonequilibrium dynamics in disordered systems.