[warent]

> Vibrations are present even at 0 K because of the uncertainty principle

Are you sure that's true? I can't remember the exact details but recall that being a common misinterpretation of the uncertainty principle

[kergonath]

Yes it’s true. Kinetic energy is never exactly zero, that’s called zero-point energy. Perfect stillness does not exist at the atomic scale. It would involve knowing perfectly both positions and velocities (in case of atoms, the equivalent is true for spins).

https://en.m.wikipedia.org/wiki/Zero-point_energy