Phonon number fluctuations in Debye model of solid

The mean numbers and the fluctuations for phonons in the Debye model of solid are calculated. When the temperatures are higher and lower in comparison with the characteristic one determined by the Debye cutoff frequency, the mean numbers are proportional to the temperature and temperature cubed, res...

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Bibliographic Details
Main Authors: Q. Chen, X. Wang, Q.H. Liu
Format: Article
Language:English
Published: Elsevier 2019-12-01
Series:Results in Physics
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379719319576