Spectral Properties of Excited States in Restricted Geometries

  • J. Klafter
  • J. M. Drake
Part of the NATO ASI Series book series (NSSB, volume 301)


Dynamics of excited states in restricted geometries are known to display nonexponential decays. In this paper we review different approaches to analyzing nonexponential decay functions, with emphasis on the stretched exponential form. We concentrate on a few solvable models for which the stretched exponential law follows in a natural fashion. Although each model describes a different mechanism, it is shown that they have the same underlying reason for the stretched exponential pattern: the existence of scale invariant relaxation times. We bring examples for applications in some real systems.


Malachite Green Direct Transfer Relaxation Function Restricted Geometry Crossover Time 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • J. Klafter
    • 1
  • J. M. Drake
    • 2
  1. 1.School of ChemistryTel Aviv UniversityTel AvivIsrael
  2. 2.Exxon Research and EngineeringAnnandaleUSA

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