wave vector

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A vector k associated with a wave number k. In the case of free electrons the wave vector k is related to the momentum p in quantum mechanics by p=ħk, where ħ is the rationalized Planck constant. In the case of Bloch's theorem, the wave vector k can only have certain values and can be thought of as a quantum number associated with the translational symmetry of the crystal.

Subjects: Chemistry — Physics.

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