Lévy Statistics for Random Single-Molecule Line Shapes in a Glass

E. Barkai, A. V. Naumov, Yu G. Vainer, M. Bauer, L. Kador

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35 Scopus citations


We demonstrate that the statistical behavior of random line shapes of single tetra-tert-butylterrylene chromophores embedded in an amorphous polyisobutylene matrix at [Formula presented] is described by Lévy statistics as predicted theoretically by Barkai, Silbey, and Zumofen [Phys. Rev. Lett. 10.1103/PhysRevLett.84.533984, 5339 (2000)]. This behavior is a manifestation of the long-range interaction between two-level systems in the glass and the single molecule. A universal amplitude ratio is investigated, which shows that the standard tunneling model assumptions are compatible with the experimental data.

Original languageEnglish
JournalPhysical Review Letters
Issue number7
StatePublished - 15 Aug 2003
Externally publishedYes


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