Lévy Statistics for Random Single-Molecule Line Shapes in a Glass
- 15 August 2003
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 91 (7), 075502
- https://doi.org/10.1103/physrevlett.91.075502
Abstract
We demonstrate that the statistical behavior of random line shapes of single tetra-tert-butylterrylene chromophores embedded in an amorphous polyisobutylene matrix at is described by Lévy statistics as predicted theoretically by Barkai, Silbey, and Zumofen [ Phys. Rev. Lett. 84, 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.
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