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YAHA
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I am currently working my way through Kitel's Solid State Physics book. When discussing the consequences of the harmonic assumption (quadratic degree of freedom for interatomic lattice interactions), he states that
1) the lattice waves do not interact
2) a single wave does not change form or decay over time.
Why is that?
1) the lattice waves do not interact
2) a single wave does not change form or decay over time.
Why is that?