Spectral diffusion in glasses
- 1 January 1978
- journal article
- Published by EDP Sciences in Journal de Physique Lettres
- Vol. 39 (12) , 195-198
- https://doi.org/10.1051/jphyslet:019780039012019500
Abstract
A new mechanism of spectral diffusion in glasses is proposed based on the flip-flop process between unlike defects. Two phonons participate in the process : one real phonon for conserving the energy and one virtual phonon for mediating the elastic interaction between the defects. The spectral-spatial diffusion is described in terms of a Fokker-Planck equation and a comparison with the classical noise process is discussedKeywords
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