The **Einstein solid** is a model of a solid based on two assumptions:

- Each atom in the lattice is an independent 3D quantum harmonic oscillator
- All atoms oscillate with the same frequency (contrast with the Debye model)

While the assumption that a solid has independent oscillations is very accurate, these oscillations are sound waves or phonons, 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.

Read more about Einstein Solid: Historical Impact, Heat Capacity (microcanonical Ensemble), Heat Capacity (canonical Ensemble)

### Other articles related to "einstein solid, solid, einstein":

**Einstein Solid**- Heat Capacity (canonical Ensemble)

... heat capacity, energy, and entropy of the

**solid**are equally distributed among its atoms (SHOs), we can work with this partition function to obtain those quantities and then ... The heat capacity of the entire

**solid**is then given by, where the total number of degree of freedom of the

**solid**is three (for the three directional degree of freedom) times, the number of atoms ... It is known as the

**Einstein**temperature ...

### Famous quotes containing the words solid and/or einstein:

“Rude poets of the tavern hearth,

squandering your unquoted mirth,

which keeps the ground, and never soars,

while jake retorts, and reuben roars;

tough and screaming, as birch-bark,

goes like bullet to its mark;

while the *solid* curse and jeer

never balk the waiting ear.”

—Ralph Waldo Emerson (1803–1882)

“If my theory of relativity is proven correct, Germany will claim me as a German and France will declare that I am a citizen of the world. Should my theory prove untrue, France will say that I am a German and Germany will declare that I am a Jew.”

—Albert *Einstein* (1879–1955)