Time - Dependent
نویسنده
چکیده
While we know that in principle quantum mechanics is needed for a comLecture 3 9/29/09 continued from N4 pletely correct theory of the microscopic behavior of materials, it is also well understood that classical mechanics is a very good approximation for many purposes. In particular, as long as we are not concerned with very low temperatures or high frequency vibrations, then classical mechanics can be a good description of many atomic and molecular degrees of freedom e.g. translation, rotation, and internal rotation.
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