Einstein solid
Model of a crystalline solid that contains a large number of independent three-dimensional quantum harmonic oscillators of the same frequency
The Einstein solid is a model of a crystalline solid that contains a large number of independent three-dimensional quantum harmonic oscillators of the same frequency. The independence assumption is relaxed in the Debye model.
Nº Q1190709 ★
Common · Knowledge
Einstein solid
Model of a crystalline solid that contains a large number of independent three-dimensional quantum harmonic oscillators of the same frequency
The Einstein solid is a model of a crystalline solid that contains a large number of independent three-dimensional quantum harmonic oscillators of the same frequency. The independence assumption is relaxed in the Debye model.
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From Wikipedia
The Einstein solid is a model of a crystalline solid that contains a large number of independent three-dimensional quantum harmonic oscillators of the same frequency. The independence assumption is relaxed in the Debye model. While the model provides qualitative agreement with experimental data, especially for the high-temperature limit, these oscillations are in fact phonons, or collective modes involving many atoms. Albert Einstein was aware that getting the frequency of the actual oscillations would be difficult, but he nevertheless proposed this theory because it was a particularly clear demonstration that quantum mechanics could solve the specific heat problem in classical mechanics.
Text: Wikipédia, CC BY-SA 4.0. ·
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