Einstein Solid
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High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! The Einstein solid is a model of a solid based on three assumptions: 1. Each atom in the lattice is a 3D quantum harmonic oscillator. 2. Each atom is attached to a preferred position in space by a spring. 3.All springs have same frequency (contrast with the Debye model). While the assumption that a solid has independent oscillations is very accurate, these oscillations are sound waves, collective modes involving many atoms. In the Einstein model, each atom oscillates independently. Einstein was aware that g...
High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! The Einstein solid is a model of a solid based on three assumptions: 1. Each atom in the lattice is a 3D quantum harmonic oscillator. 2. Each atom is attached to a preferred position in space by a spring. 3.All springs have same frequency (contrast with the Debye model). While the assumption that a solid has independent oscillations is very accurate, these oscillations are sound waves, collective modes involving many atoms. In the Einstein model, each atom oscillates independently. Einstein was aware that getting the frequency of the actual oscillations would be different, 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.
