Quantum Motion in Real Space
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So far we have studied the quantum formalism in the abstract (Chap. 2) and in the context of rotational dynamics (Chap. 3). In this chapter we work with the spatial motion of point particles, which represents a kind of mechanics that is much closer to our everyday experience. Here, quantum states are called wavefunctions and depend on the spatial coordinate(s). This apparent difference to the material covered in the previous chapters disappears when we express all wavefunctions in a basis set. We develop numerical methods for studying spatial dynamics that stay as close to a real-space description as quantum mechanics allows.